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2 (Two) is a number, numeral, and glyph. [1]

227 relations: Addition, Alkaline earth metal, American football, Apparent magnitude, Aquarius (constellation), ASCII, Association football, Astrological sign, Astrology, Atomic number, Baseball, Basketball, Bell number, Bengali numerals, Binary number, Binary star, Bright giant, C0 and C1 control codes, Candle, Cantonese, Capital punishment, Category theory, Center of mass, Challah, Checkerboard, Chinese numerals, Computer, Computer science, Constellation, Decimal, Decimal representation, Devanagari, Dialectic, Dichotomy, Dimension, Division (mathematics), Divisor, DNA, Dualism, Eastern Arabic numerals, Edge (geometry), Eight queens puzzle, Eisenstein prime, Euler characteristic, Everett, Washington, Evil, Exponentiation, Face (geometry), Factorial, Factorial prime, ..., Fibonacci number, Fibonacci prime, Field (mathematics), Finland, Football, Fraction (mathematics), Ge'ez script, Georg Wilhelm Friedrich Hegel, Globular cluster, Glyph, Grading systems by country, Greek numerals, Guangdong, Gupta script, Halakha, Harshad number, Hat-trick, Hebrew language, Hebrew numerals, Helium, Hexadecimal, High-density polyethylene, Houlton, Maine, Hunting, Hyperoperation, Independence Day (Finland), Indonesian language, Integer, International maritime signal flags, Irrational number, Japanese writing system, Jewish holidays, Jewish views on marriage, Judaism, Khmer numerals, Korean numerals, Land of Israel, Line (geometry), List of twins, Lists of pairs, Lithium, Lucas number, Lunar eclipse, Magic number (physics), Malay language, Manna, Markov number, Mathematics, Meander (mathematics), Mersenne prime, Messier 2, Messier object, Motzkin number, Multiplication, Natural number, Neon, New Brunswick, New General Catalogue, NGC 2, Nix (moon), Noah's Ark, Nucleic acid double helix, Number, Number Two, Numbers in Chinese culture, Numeral system, One half, Orbit, Parity (mathematics), Passover, Pegasus (constellation), Pell number, Pennant (commissioning), Periodic table, Perrin number, Point (geometry), Polynucleotide, Power of two, Prime number, Primorial, Radix, Ramanujan prime, Reduplication, Remus (moon), Resin identification code, Rouses Point, New York, Saros (astronomy), Set theory, Shabbat, Shavuot, Shemini Atzeret, Six-man football, Smarandache–Wellin number, Solar eclipse, Sophie Germain prime, Spiral galaxy, Square (algebra), Square root, Square root of 2, St. Ignace, Michigan, Star, Star system, Stellar classification, Stern prime, Subobject classifier, Subscript and superscript, Sukkot, Superior highly composite number, Tamil numerals, Taurus (constellation), Ten Commandments, Tetration, Text figures, Thai numerals, The Exodus, The Penguin Dictionary of Curious and Interesting Numbers, The Twelve Days of Christmas (song), Thesis, antithesis, synthesis, Three-point field goal, Torah, Trans-Canada Highway, Twin prime, U.S. Route 2, Unclean animal, Undergraduate education, Urdu, Valence (chemistry), Value theory, Vertex (geometry), Wieferich prime, Written Chinese, X-height, Znám's problem, Zodiac, 1 (number), 10 (number), 100 (number), 1024 (number), 12 (number), 121 (number), 128 (number), 14 (number), 144 (number), 16 (number), 169 (number), 18 (number), 196 (number), 20 (number), 200 (number), 2000 (number), 22 (number), 24 (number), 256 (number), 26 (number), 28 (number), 3 (number), 30 (number), 32 (number), 34 (number), 36 (number), 38 (number), 3x3 (basketball), 4 (number), 40 (number), 42 (number), 44 (number), 46 (number), 48 (number), 49 (number), 50 (number), 512 (number), 6 (number), 64 (number), 7 (number), 8 (number), 81 (number), 9 (number). Expand index (177 more) »


Addition (often signified by the plus symbol "+") is one of the four elementary, mathematical operations of arithmetic, with the others being subtraction, multiplication and division.

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Alkaline earth metal

The alkaline earth metals are six chemical elements in column (group) 2 of the Periodic table.

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American football

American football (referred to as football in the United States and Canada, also known as gridiron elsewhere) is a sport played by two teams of eleven players on a rectangular field with goalposts at each end.

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Apparent magnitude

The apparent magnitude (m) of a celestial object is a measure of its brightness as seen by an observer on Earth, adjusted to the value it would have in the absence of the atmosphere.

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Aquarius (constellation)

Aquarius is a constellation of the zodiac, situated between Capricornus and Pisces.

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ASCII, abbreviated from American Standard Code for Information Interchange, is a character-encoding scheme (the IANA prefers the name US-ASCII).

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Association football

Association football, more commonly known as football or soccer, is a sport played between two teams of eleven players with a spherical ball.

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Astrological sign

|Circles of 9 and 12 - The 108 Human Types |Circles of 9 and 12 - The 108 Human Types In Western astrology, astrological signs are the twelve 30° sectors of the ecliptic, starting at the vernal equinox (one of the intersections of the ecliptic with the celestial equator), also known as the First Point of Aries.

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Astrology consists of several pseudoscientific systems of divination based on the premise that there is a relationship between astronomical phenomena and events in the human world.

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Atomic number

In chemistry and physics, the atomic number of a chemical element (also known as its proton number) is the number of protons found in the nucleus of an atom of that element, and therefore identical to the charge number of the nucleus.

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Baseball is a bat-and-ball game played between two teams of nine players each who take turns batting and fielding.

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Basketball is a sport played by two teams of five players on a rectangular court.

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Bell number

In combinatorial mathematics, the Bell numbers count the number of partitions of a set.

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Bengali numerals

Bengali numerals (সংখ্যা shôngkhæ), are the numeral system used in Bengali language, Assamese language, Bishnupriya Manipuri and Meithei language languages.

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Binary number

In mathematics and digital electronics, a binary number is a number expressed in the binary numeral system, or base-2 numeral system, which represents numeric values using two different symbols: typically 0 (zero) and 1 (one).

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Binary star

A binary star is a star system consisting of two stars orbiting around their common center of mass.

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Bright giant

The luminosity class II in the Yerkes spectral classification is given to bright giants.

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C0 and C1 control codes

The C0 and C1 control code or control character sets define control codes for use in text by computer systems that use the ISO/IEC 2022 system of specifying control and graphic characters.

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A candle is wax with an ignitable wick embedded that provides light, and in some cases, a fragrance.

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Cantonese, or Standard Cantonese (廣東話, 广东话; originally known as 廣州話, 广州话), is the dialect of Yue Chinese spoken in the vicinity of Canton (Guangzhou) in southern China.

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Capital punishment

Capital punishment, death penalty or execution is punishment by death.

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Category theory

Category theory formalizes mathematical structure and its concepts in terms of a collection of objects and of arrows (also called morphisms).

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Center of mass

In physics, the center of mass of a distribution of mass in space is the unique point where the weighted relative position of the distributed mass sums to zero or the point where if a force is applied causes it to move in direction of force without rotation.

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Challah (חלה), plural: challot or challos, is a special Jewish braided bread eaten on Sabbath and Jewish holidays.

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A checkerboard or chequerboard (see spelling differences) is a board of chequered pattern on which English draughts (checkers) is played.

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Chinese numerals

Chinese numerals are words and characters used to denote numbers in Chinese.

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A computer is a general-purpose device that can be programmed to carry out a set of arithmetic or logical operations automatically.

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Computer science

Computer science deals with the theoretical foundations of information and computation, together with practical techniques for the implementation and application of these foundations Computer science is the scientific and practical approach to computation and its applications.

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In modern astronomy, a constellation is a specific area of the celestial sphere as defined by the International Astronomical Union (IAU).

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The decimal numeral system (also called base 10 or occasionally denary) has ten as its base.

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Decimal representation

A decimal representation of a non-negative real number r is an expression in the form of a series, traditionally written as a sum where a0 is a nonnegative integer, and a1, a2,...

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Devanagari (देवनागरी devanāgarī a compound of "deva" and "nāgarī"), also called Nagari (Nāgarī, नागरी),Kathleen Kuiper (2010), The Culture of India, New York: The Rosen Publishing Group, ISBN 978-1615301492, page 83 is an abugida (alphasyllabary) alphabet of India and Nepal.

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Dialectic (also dialectics and the dialectical method), from Ancient Greek διαλεκτική, is a method of argument for resolving disagreement that has been central to European and Indian philosophy since antiquity.

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A dichotomy is a partition of a whole (or a set) into two parts (subsets) that are.

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In physics and mathematics, the dimension of a mathematical space (or object) is informally defined as the minimum number of coordinates needed to specify any point within it.

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Division (mathematics)

In mathematics, especially in elementary arithmetic, division (denoted ÷ or / or —) is an arithmetic operation.

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In mathematics a divisor of an integer n, also called a factor of n, is an integer that can be multiplied by some other integer to produce n.

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Deoxyribonucleic acid (DNA) is a molecule that carries most of the genetic instructions used in the development, functioning and reproduction of all known living organisms and many viruses.

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Dualism (from the Latin word duo meaning "two") denotes the state of two parts.

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Eastern Arabic numerals

The Eastern Arabic numerals (also called Arabic–Indic numerals and Arabic Eastern numerals) are the symbols used to represent the Hindu–Arabic numeral system in conjunction with the Arabic alphabet in the countries of the Arab east, and its variant in other countries.

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Edge (geometry)

In geometry, an edge is a particular type of line segment joining two vertices in a polygon, polyhedron, or higher-dimensional polytope.

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Eight queens puzzle

The eight queens puzzle is the problem of placing eight chess queens on an 8×8 chessboard so that no two queens threaten each other.

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Eisenstein prime

In mathematics, an Eisenstein prime is an Eisenstein integer that is irreducible (or equivalently prime) in the ring-theoretic sense: its only Eisenstein divisors are the units (±1, ±ω, ±ω2), a + bω itself and its associates.

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Euler characteristic

In mathematics, and more specifically in algebraic topology and polyhedral combinatorics, the Euler characteristic (or Euler number, or Euler–Poincaré characteristic) is a topological invariant, a number that describes a topological space's shape or structure regardless of the way it is bent.

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Everett, Washington

Everett is the county seat of and the largest city in Snohomish County, Washington, United States.

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Evil, in a general context, is taken as the absence or complete opposite of that which is ascribed as being good.

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Exponentiation is a mathematical operation, written as bn, involving two numbers, the base b and the exponent n. When n is a positive integer, exponentiation corresponds to repeated multiplication of the base: that is, bn is the product of multiplying n bases: In that case, bn is called the n-th power of b, or b raised to the power n. The exponent is usually shown as a superscript to the right of the base.

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Face (geometry)

In solid geometry, a face is a flat (planar) surface that forms part of the boundary of a solid object; a three-dimensional solid bounded exclusively by flat faces is a polyhedron.

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In mathematics, the factorial of a non-negative integer n, denoted by n!, is the product of all positive integers less than or equal to n. For example, The value of 0! is 1, according to the convention for an empty product.

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Factorial prime

A factorial prime is a prime number that is one less or one more than a factorial (all factorials > 1 are even).

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Fibonacci number

In mathematics, the Fibonacci numbers or Fibonacci sequence are the numbers in the following integer sequence: or (often, in modern usage): By definition, the first two numbers in the Fibonacci sequence are either 1 and 1, or 0 and 1, depending on the chosen starting point of the sequence, and each subsequent number is the sum of the previous two.

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Fibonacci prime

A Fibonacci prime is a Fibonacci number that is prime, a type of integer sequence prime.

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Field (mathematics)

In abstract algebra, a field is a nonzero commutative division ring, or equivalently a ring whose nonzero elements form an abelian group under multiplication.

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Finland (Suomi; Finland), officially the Republic of Finland, is a Nordic country in Northern Europe bordered by Sweden to the west, Norway to the north, and Russia to the east; Estonia lies to the south across the Gulf of Finland.

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Football refers to a number of sports that involve, to varying degrees, kicking a ball with the foot to score a goal.

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Fraction (mathematics)

A fraction (from fractus, "broken") represents a part of a whole or, more generally, any number of equal parts.

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Ge'ez script

Geʻez (ግዕዝ), (also known as Ethiopic) is a script used as an abugida (syllable alphabet) for several languages of Ethiopia and Eritrea.

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Georg Wilhelm Friedrich Hegel

Georg Wilhelm Friedrich Hegel (August 27, 1770 – November 14, 1831) was a German philosopher of the late Enlightenment.

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Globular cluster

A globular cluster is a spherical collection of stars that orbits a galactic core as a satellite.

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In typography, a glyph is an elemental symbol within an agreed set of symbols, intended to represent a readable character for the purposes of writing and thereby expressing thoughts, ideas and concepts.

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Grading systems by country

This is a list of grading systems by countries.

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Greek numerals

Greek numerals are a system of representing numbers using the letters of the Greek alphabet.

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Guangdong is a province on the South China Sea coast of the People's Republic of China.

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Gupta script

The Gupta script (sometimes referred to as Gupta Brahmi Script or Late Brahmi ScriptSharma, Ram. 'Brahmi Script'. Delhi: BR Publishing Corp, 2002) was used for writing Sanskrit and is associated with the Gupta Empire of India which was a period of material prosperity and great religious and scientific developments.

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Halakha (הֲלָכָה,; also transliterated as halacha, halachah or halocho) is the collective body of Jewish religious laws derived from the Written and Oral Torah.

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Harshad number

In recreational mathematics, a Harshad number (or Niven number) in a given number base, is an integer that is divisible by the sum of its digits when written in that base.

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A hat-trick or hat trick in sports is the achieving of a positive feat three times in a game, or other achievements based on threes in some sports.

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Hebrew language

Hebrew is a West Semitic language of the Afroasiatic language family.

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Hebrew numerals

The system of Hebrew numerals is a quasi-decimal alphabetic numeral system using the letters of the Hebrew alphabet.

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Helium is a chemical element with symbol He and atomic number 2.

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In mathematics and computing, hexadecimal (also base, or hex) is a positional numeral system with a radix, or base, of 16.

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High-density polyethylene

High-density polyethylene (HDPE) or polyethylene high-density (PEHD) is a polyethylene thermoplastic made from petroleum.

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Houlton, Maine

Houlton is a town in Aroostook County, Maine, on the United States – Canada border, located at.

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Hunting is the practice of killing or trapping any animal, or pursuing it with the intent of doing so.

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In mathematics, the hyperoperation sequence is an infinite sequence of arithmetic operations (called hyperoperations) that starts with the unary operation of successor (n.

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Independence Day (Finland)

Finland's Independence Day (itsenäisyyspäivä, självständighetsdag) is a national public holiday, and a flag day, held on 6 December to celebrate Finland's declaration of independence from the Russian Republic in 1917.

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Indonesian language

Indonesian (Bahasa Indonesia) is the official language of Indonesia.

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An integer (from the Latin ''integer'' meaning "whole")Integer 's first, literal meaning in Latin is "untouched", from in ("not") plus tangere ("to touch").

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International maritime signal flags

The system of international maritime signal flags is one system of flag signals representing individual letters of the alphabet in signals to or from ships.

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Irrational number

In mathematics, an irrational number is any real number that cannot be expressed as a ratio of integers.

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Japanese writing system

The modern Japanese writing system is a combination of two character types: logographic kanji, which are adopted Chinese characters, and syllabic kana.

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Jewish holidays

Jewish holidays, also known as Jewish festivals or Yamim Tovim ("Good Days", or singular Yom Tov, in transliterated Hebrew), are holidays observed by JewsThis article focuses on practices of mainstream Rabbinic Judaism.

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Jewish views on marriage

In traditional Judaism, marriage is viewed as a contractual bond commanded by God in which a man and a woman come together to create a relationship in which God is directly involved.

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Judaism (from Iudaismus, derived from Greek Ἰουδαϊσμός, originally from Hebrew, Yehudah, "Judah"; in Hebrew:, Yahadut, the distinctive characteristics of the Judean ethnos) encompasses the religion, philosophy, culture and way of life of the Jewish people.

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Khmer numerals

Khmer numerals are the numerals used in the Khmer language.

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Korean numerals

The Korean language has two regularly used sets of numerals, a native Korean system and Sino-Korean system.

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Land of Israel

The Land of Israel (אֶרֶץ יִשְׂרָאֵל ʼÉreṣ Yiśrāʼēl, Eretz Yisrael) is one of several names for an area of indefinite geographical extension in the Southern Levant.

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Line (geometry)

The notion of line or straight line was introduced by ancient mathematicians to represent straight objects (i.e., having no curvature) with negligible width and depth.

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List of twins

This is a list of notable twins, siblings resultant from a multiple birth.

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Lists of pairs

These are lists of pairs by type.

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Lithium (from λίθος lithos, "stone") is a chemical element with symbol Li and atomic number 3.

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Lucas number

The Lucas numbers or Lucas series are an integer sequence named after the mathematician François Édouard Anatole Lucas (1842–1891), who studied both that sequence and the closely related Fibonacci numbers.

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Lunar eclipse

A lunar eclipse occurs when the Moon passes directly behind the Earth into its umbra (shadow).

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Magic number (physics)

In nuclear physics, a magic number is a number of nucleons (either protons or neutrons) such that they are arranged into complete shells within the atomic nucleus.

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Malay language

Malay (Bahasa Melayu; Jawi script: بهاس ملايو) is a major language of the Austronesian family.

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Manna (מָן) or al-Mann wa al-Salwa (المَنّ و السلوى., gezo, گزانگبین), sometimes or archaically spelled mana, is an edible substance that, according to the Bible and the Quran, God provided for the Israelites during their travels in the desert.

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Markov number

A Markov number or Markoff number is a positive integer x, y or z that is part of a solution to the Markov Diophantine equation studied by.

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Mathematics (from Greek μάθημα máthēma, “knowledge, study, learning”) is the study of topics such as quantity (numbers), structure, space, and change.

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Meander (mathematics)

In mathematics, a meander or closed meander is a self-avoiding closed curve which intersects a line a number of times.

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Mersenne prime

In mathematics, a Mersenne prime is a prime number that is one less than a power of two.

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Messier 2

Messier 2 or M2 (also designated NGC 7089) is a globular cluster in the constellation Aquarius, five degrees north of the star Beta Aquarii.

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Messier object

The Messier objects are a set of over 100 astronomical objects first listed by French astronomer Charles Messier in 1771.

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Motzkin number

In mathematics, a Motzkin number for a given number n is the number of different ways of drawing non-intersecting chords between n points on a circle (not necessarily touching every point by a chord).

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Multiplication (often denoted by the cross symbol "×", by a point "·" or by the absence of symbol) is one of the four elementary, mathematical operations of arithmetic; with the others being addition, subtraction and division.

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Natural number

In mathematics, the natural numbers (sometimes called the whole numbers): "whole number An integer, though sometimes it is taken to mean only non-negative integers, or just the positive integers." give definitions of "whole number" under several headwords: INTEGER … Syn. whole number.

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Neon is a chemical element with symbol Ne and atomic number 10.

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New Brunswick

New Brunswick (Nouveau-Brunswick;, Quebec French pronunciation) is one of Canada's three Maritime provinces and is the only province constitutionally bilingual (English–French).

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New General Catalogue

The New General Catalogue of Nebulae and Clusters of Stars (abbreviated as NGC) is a well-known catalogue of deep-sky objects in astronomy compiled by John Louis Emil Dreyer in 1888, as a new version of John Herschel's Catalogue of Nebulae and Clusters of Stars.

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NGC 2 is a spiral galaxy in the constellation Pegasus.

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Nix (moon)

Nix is a natural satellite of Pluto.

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Noah's Ark

Noah's Ark (תיבת נח; Biblical Hebrew: Tevat Noaḥ) is the vessel in the Genesis flood narrative (Genesis chapters 6–9) by which God saves Noah, his family, and a remnant of all the world's animals from the flood.

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Nucleic acid double helix

In molecular biology, the term double helix refers to the structure formed by double-stranded molecules of nucleic acids such as DNA.

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A number is a mathematical object used to count, measure and label.

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Number Two

Number Two, No.

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Numbers in Chinese culture

In Chinese tradition, certain numbers are believed by some to be auspicious (吉利) or inauspicious (不利) based on the Chinese word that the number name sounds similar to.

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Numeral system

A numeral system (or system of numeration) is a writing system for expressing numbers, that is, a mathematical notation for representing numbers of a given set, using digits or other symbols in a consistent manner.

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One half

One half is the irreducible fraction resulting from dividing one by two (½), or the fraction resulting from dividing any number by its double.

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In physics, an orbit is the gravitationally curved path of an object around a point in space, for example the orbit of a planet around the center of a star system, such as the Solar System.

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Parity (mathematics)

Parity is a mathematical term that describes the property of an integer's inclusion in one of two categories: even or odd.

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Passover or Pesach (from Hebrew Pesah, Pesakh), is an important, biblically derived Jewish festival.

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Pegasus (constellation)

Pegasus is a constellation in the northern sky, named after the winged horse Pegasus in Greek mythology.

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Pell number

In mathematics, the Pell numbers are an infinite sequence of integers, known since ancient times, that comprise the denominators of the closest rational approximations to the square root of 2.

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Pennant (commissioning)

The commissioning pennant (or masthead pennant) is a pennant (also spelled "pendant") flown from the masthead of a warship.

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Periodic table

The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic number (number of protons in the nucleus), electron configurations, and recurring chemical properties.

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Perrin number

In mathematics, the Perrin numbers are defined by the recurrence relation and The sequence of Perrin numbers starts with The number of different maximal independent sets in an n-vertex cycle graph is counted by the nth Perrin number for n > 1.

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Point (geometry)

In modern mathematics, a point refers usually to an element of some set called a space.

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A polynucleotide molecule is a biopolymer composed of 13 or more nucleotide monomers covalently bonded in a chain.

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Power of two

In mathematics, a power of two means a number of the form where is an integer, i.e. the result of exponentiation with number two as the base and integer as the exponent.

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Prime number

A prime number (or a prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself.

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In mathematics, and more particularly in number theory, primorial is a function from natural numbers to natural numbers similar to the factorial function, but rather than successively multiplying positive integers, only prime numbers are multiplied.

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In mathematical numeral systems, the radix or base is the number of unique digits, including zero, used to represent numbers in a positional numeral system.

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Ramanujan prime

In mathematics, a Ramanujan prime is a prime number that satisfies a result proven by Srinivasa Ramanujan relating to the prime-counting function.

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Reduplication in linguistics is a morphological process in which the root or stem of a word (or part of it) or even the whole word is repeated exactly or with a slight change.

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Remus (moon)

Remus is the inner and smaller moon of the main-belt asteroid 87 Sylvia.

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Resin identification code

The SPI resin identification coding system is a set of symbols placed on plastics to identify the polymer type.

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Rouses Point, New York

Rouses Point is a village in Clinton County, New York, United States, along the 45th parallel.

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Saros (astronomy)

The saros is a period of approximately 223 synodic months (approximately 6585.3211 days, or 18 years, 11 days, 8 hours), that can be used to predict eclipses of the Sun and Moon.

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Set theory

Set theory is the branch of mathematical logic that studies sets, which informally are collections of objects.

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Shabbat (שַׁבָּת, "rest" or "cessation") or Shabbos (r) (English: Sabbath) is Judaism's day of rest and seventh day of the week, on which religious Jews remember the Biblical creation of the heavens and the earth in six days and the Exodus of the Hebrews, and look forward to a future Messianic Age.

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Shavuot (or Shovuos, in Ashkenazi usage; Shavuʿoth in Sephardi and Mizrahi Hebrew (שבועות, lit. "Weeks"), known as the Feast of Weeks in English and as Pentecost (Πεντηκοστή) in Ancient Greek, is a Jewish holiday that occurs on the sixth day of the Hebrew month of Sivan (late May or early June). Shavuot has a double significance. It marks the all-important wheat harvest in the Land of Israel; and it commemorates the anniversary of the day God gave the Torah to the entire nation of Israel assembled at Mount Sinai, although the association between the giving of the Torah (Matan Torah) and Shavuot is not explicit in the Biblical text. The holiday is one of the Shalosh Regalim, the three Biblical pilgrimage festivals. It marks the conclusion of the Counting of the Omer, and its date is directly linked to that of Passover. The Torah mandates the seven-week Counting of the Omer, beginning on the second day of Passover, to be immediately followed by Shavuot. This counting of days and weeks is understood to express anticipation and desire for the giving of the Torah. On Passover, the people of Israel were freed from their enslavement to Pharaoh; on Shavuot they were given the Torah and became a nation committed to serving God. The word Shavuot means weeks, and the festival of Shavuot marks the completion of the seven-week counting period between Passover and Shavuot. Shavuot is one of the lesser-known Jewish holidays among secular Jews in the Jewish diaspora, while those in Israel are more aware of it. According to Jewish law, Shavuot is celebrated in Israel for one day and in the Diaspora (outside of Israel) for two days. Reform Judaism celebrates only one day, even in the Diaspora.

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Shemini Atzeret

Shemini Atzeret (– "Eighth Assembly"; Sefardic/Israeli pron. shemini atzèret; Ashkenazic pron. shmini-atsères) is a Jewish holiday.

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Six-man football

Six-man football is a variant of American football that is played with six players per team, instead of 11.

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Smarandache–Wellin number

In mathematics, a Smarandache–Wellin number is an integer that in a given base is the concatenation of the first n prime numbers written in that base.

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Solar eclipse

As seen from the Earth, a solar eclipse is a type of eclipse that occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks ("occults") the Sun.

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Sophie Germain prime

In number theory, a prime number p is a Sophie Germain prime if 2p + 1 is also prime.

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Spiral galaxy

A spiral galaxy is a certain kind of galaxy originally described by Edwin Hubble in his 1936 work The Realm of the Nebulae(pp. 124–151) and, as such, forms part of the Hubble sequence.

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Square (algebra)

In mathematics, a square is the result of multiplying a number by itself.

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Square root

In mathematics, a square root of a number a is a number y such that, in other words, a number y whose square (the result of multiplying the number by itself, or) is a. For example, 4 and −4 are square roots of 16 because.

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Square root of 2

The square root of 2, written in mathematics as or 2^, is the positive algebraic number that, when multiplied by itself, gives the number 2.

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St. Ignace, Michigan

Saint Ignace, usually written as St.

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A star is a luminous sphere of plasma held together by its own gravity.

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Star system

A star system or stellar system is a small number of stars that orbit each other, bound by gravitational attraction.

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Stellar classification

In astronomy, stellar classification is the classification of stars based on their spectral characteristics.

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Stern prime

A Stern prime, named for Moritz Abraham Stern, is a prime number that is not the sum of a smaller prime and twice the square of a non zero integer.

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Subobject classifier

In category theory, a subobject classifier is a special object Ω of a category; intuitively, the subobjects of an object X correspond to the morphisms from X to Ω. As the name suggests, what a subobject classifier does is to identify/classify subobjects of a given object according to which elements belong to the subobject in question.

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Subscript and superscript

A subscript or superscript is a number, figure, symbol, or indicator that is smaller than the normal line of type and is set slightly below or above it.

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Sukkot or Succot (סוכות or סֻכּוֹת), in traditional Ashkenazi pronunciation Sukkos or Succos, literally Feast of Booths, is commonly translated to English as Feast of Tabernacles, sometimes also as Feast of the Ingathering.

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Superior highly composite number

In mathematics, a superior highly composite number is a natural number which has more divisors than any other number.

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Tamil numerals

Tamil numerals (தமிழ் எண்கள், இலக்கங்கள்), refers to the numeral system of the Tamil language used officially in Tamil Nadu and Singapore, as well as by the other Tamil-speaking populations around the world including Mauritius, Sri Lanka, Malaysia, Réunion, and South Africa, and other emigrant communities around the world.

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Taurus (constellation)

Taurus (Latin for "the Bull"; symbol:, Unicode) is one of the constellations of the zodiac, which means it is crossed by the plane of the ecliptic.

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Ten Commandments

The Ten Commandments, also known as the Decalogue, are a set of commandments which the Bible describes as being given to the Israelites by God at biblical Mount Sinai.

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In mathematics, tetration (or hyper-4) is the next hyperoperator after exponentiation, and is defined as iterated exponentiation.

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Text figures

Text figures (also known as non-lining, lowercase, old style, ranging, hanging, medieval, billing, or antique figures or numerals) are numerals typeset with varying heights in a fashion that resembles a typical line of running text, hence the name.

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Thai numerals

Thai numerals (เลขไทย, IPA) constitute a numeral system of Thai number names for the Khmer numerals traditionally used in Thailand, also used for the more common Arabic numerals, and which follow the Hindu-Arabic numeral system.

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The Exodus

The Exodus (from Greek ἔξοδος exodos, "going out") is the founding myth of Israel; its message is that the Israelites were delivered from slavery by Yahweh and therefore belong to him through the Mosaic covenant.

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The Penguin Dictionary of Curious and Interesting Numbers

The Penguin Dictionary of Curious and Interesting Numbers is a reference book for recreational mathematics and elementary number theory written by David Wells.

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The Twelve Days of Christmas (song)

"The Twelve Days of Christmas" is an English Christmas carol that enumerates in the manner of a cumulative song a series of increasingly grand gifts given on each of the twelve days of Christmas.

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Thesis, antithesis, synthesis

The triad thesis, antithesis, synthesis is often used to describe the thought of German philosopher Georg Wilhelm Friedrich Hegel.

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Three-point field goal

A three-point field goal (also called a three-pointer) is a field goal in a basketball game made from beyond the three-point line, a designated arc surrounding the basket.

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Torah (תּוֹרָה, "Instruction, Teaching"), or the Pentateuch, is the central reference of the religious Judaic tradition.

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Trans-Canada Highway

The Trans-Canada Highway (French: Route Transcanadienne) is a transcontinental federal-provincial highway system that travels through all ten provinces of Canada between its Pacific Ocean and Atlantic Ocean coasts to the west and east respectively.

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Twin prime

A twin prime is a prime number that has a prime gap of two.

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U.S. Route 2

U.S. Route 2 or U.S. Highway 2 (US 2) is an east–west U.S. Highway spanning across the northern continental United States.

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Unclean animal

In some religions, an unclean animal is an animal whose consumption or handling is taboo.

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Undergraduate education

Undergraduate education is the post-secondary education previous to the postgraduate education.

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Urdu (اُردُو ALA-LC:;, or Modern Standard Urdu) is a standardised register of the Hindustani language.

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Valence (chemistry)

In chemistry, the valence (or valency) of an element is a measure of its combining power with other atoms when it forms chemical compounds or molecules.

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Value theory

Value theory encompasses a range of approaches to understanding how, why, and to what degree persons value things; whether the object of valuing is a person, idea, object, or anything else.

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Vertex (geometry)

In geometry, a vertex (plural vertices) is a special kind of point that describes the corners or intersections of geometric shapes.

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Wieferich prime

In number theory, a Wieferich prime is a prime number p such that p2 divides 2p − 1 − 1, therefore connecting these primes with Fermat's little theorem, which states that every odd prime p divides 2p − 1 − 1.

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Written Chinese

Written Chinese comprises Chinese characters (汉字/漢字; pinyin: Hànzì, literally "Han characters") used to represent the Chinese language.

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In typography, the x-height or corpus size refers to the distance between the baseline and the mean line of lower-case letters in a typeface.

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Znám's problem

In number theory, Znám's problem asks which sets of k integers have the property that each integer in the set is a proper divisor of the product of the other integers in the set, plus 1.

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In both astrology and historical astronomy, the zodiac (Greek: ζῳδιακός, zōidiakos) is a circle of twelve 30° divisions of celestial longitude that are centered upon the ecliptic, the apparent path of the Sun across the celestial sphere over the course of the year.

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1 (number)

1 (one; or, also called "unit", "unity", and "(multiplicative) identity", is a number, a numeral, and the name of the glyph representing that number. It represents a single entity, the unit of counting or measurement. For example, a line segment of "unit length" is a line segment of length 1.

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10 (number)

10 (ten) is an even natural number following 9 and preceding 11.

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100 (number)

100 or one hundred (Roman numeral: Ⅽ) is the natural number following 99 and preceding 101.

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1024 (number)

1024 is the natural number following 1023 and preceding 1025.

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12 (number)

12 (twelve) is the natural number following 11 and preceding 13.

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121 (number)

121 (one hundred twenty-one) is the natural number following 120 and preceding 122.

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128 (number)

128 (one hundred twenty-eight) is the natural number following 127 and preceding 129.

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14 (number)

14 (fourteen) is the natural number following 13 and preceding 15.

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144 (number)

144 (one hundred forty-four) is the natural number following 143 and preceding 145.

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16 (number)

16 (sixteen) is the natural number following 15 and preceding 17.

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169 (number)

169 (one hundred sixty-nine) is the natural number following 168 and preceding 170.

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18 (number)

18 (eighteen) is the natural number following 17 and preceding 19.

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196 (number)

196 (one hundred ninety-six) is the natural number following 195 and preceding 197.

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20 (number)

20 (twenty) is the natural number following 19 and preceding 21.

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200 (number)

200 (two hundred) is the natural number following 199 and preceding 201.

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2000 (number)

2000 (two thousand) is a natural number following 1999 and preceding 2001.

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22 (number)

22 (twenty-two) is the natural number following 21 and preceding 23.

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24 (number)

24 (twenty-four) is the natural number following 23 and preceding 25.

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256 (number)

256 (two hundred fifty-six, CCLVI) is the natural number following 255 and preceding 257.

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26 (number)

26 (twenty-six) is the natural number following 25 and preceding 27.

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28 (number)

28 (twenty-eight) is the natural number following 27 and preceding 29.

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3 (number)

3 (three) is a number, numeral, and glyph.

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30 (number)

30 (thirty) is the natural number following 29 and preceding 31.

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32 (number)

32 (thirty-two) is the natural number following 31 and preceding 33.

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34 (number)

34 (thirty-four) is the natural number following 33 and preceding 35.

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36 (number)

36 (thirty-six) is the natural number following 35 and preceding 37.

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38 (number)

38 (thirty-eight) is the natural number following 37 and preceding 39.

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3x3 (basketball)

3x3 (pronounced 3 on 3, 3 by 3 or 3x3), known also as streetball or street basketball is a form of the game played three a side on one hoop.

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4 (number)

4 (four) is a number, numeral, and glyph.

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40 (number)

40 (forty) is the natural number following 39 and preceding 41.

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42 (number)

42 (forty-two) is the natural number that succeeds 41 and precedes 43.

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44 (number)

44 (forty-four) is the natural number following 43 and preceding 45.

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46 (number)

46 (forty-six) is the natural number following 45 and preceding 47.

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48 (number)

48 (forty-eight) is the natural number following 47 and preceding 49.

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49 (number)

49 (forty-nine) is the natural number following 48 and preceding 50.

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50 (number)

50 (fifty) is the natural number following 49 and preceding 51.

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512 (number)

512 is the natural number following 511 and preceding 513.

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6 (number)

6 (six) is the natural number following 5 and preceding 7.

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64 (number)

64 (sixty-four) is the natural number following 63 and preceding 65.

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7 (number)

7 (seven) is the natural number following and preceding.

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8 (number)

8 (eight) is the natural number following 7 and preceding 9.

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81 (number)

81 (eighty-one) is the natural number following 80 and preceding 82.

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9 (number)

9 (nine) is the natural number following 8 and preceding 10.

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-2, 2 (glyph), 2 (the number), 2^1, Brace (hunting), Brace (sports), Even prime, II, Number 2, Oddest prime, SS0, Secondly, Square root of 4, The 2, The number 2, Two, Two (number), Two-ness, ٢, ۲, ߂, , , , , , , , , , , , , , , , , , , −2, −2 (number), , , , , , , , , , , , , 𐒢, 𐡙, 🄃.


[1] https://en.wikipedia.org/wiki/2_(number)

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