A crane vessel, crane ship or floating crane is a ship with a crane specialized in lifting heavy loads.
A derrick is a lifting device composed at minimum of one guyed mast, as in a gin pole, which may be articulated over a load by adjusting its guys.
The YD engine is a 2.2 L & 2.5 L I4 diesel engine from Nissan.
South Yemen is the common English name for the People's Democratic Republic of Yemen (جمهورية اليمن الديمقراطية الشعبية), which existed from 1967 to 1990 as a state in the Middle East in the southern and eastern provinces of the present-day Republic of Yemen, including the island of Socotra.
The yard (abbreviation: yd) is an English unit of length, in both the British imperial and US customary systems of measurement, that comprises 3 feet or 36 inches.
The Yarmouth–Dennis Red Sox, or Y-D Red Sox, is a collegiate summer baseball team based in South Yarmouth, Massachusetts.
The Younger Dryas (c. 12,900 to c. 11,700 years BP) was a return to glacial conditions which temporarily reversed the gradual climatic warming after the Last Glacial Maximum started receding around 20,000 BP.