Auxesis (αὔξησις, aúxēsis) is the Greek word for "growth" or "increase".
Exaggeration is a representation of something in an excessive manner.
A figure of speech or rhetorical figure is figurative language in the form of a single word or phrase.
Intensifier (abbreviated) is a linguistic term (but not a proper lexical category) for a modifier that makes no contribution to the propositional meaning of a clause but serves to enhance and give additional emotional context to the word it modifies.
In rhetoric, litotes is a figure of speech that uses understatement to emphasize a point by stating a negative to further affirm a positive, often incorporating double negatives for effect.
In rhetoric, meiosis is a euphemistic figure of speech that intentionally understates something or implies that it is lesser in significance or size than it really is.
Poetry (the term derives from a variant of the Greek term, poiesis, "making") is a form of literature that uses aesthetic and rhythmic qualities of language—such as phonaesthetics, sound symbolism, and metre—to evoke meanings in addition to, or in place of, the prosaic ostensible meaning.
Public speaking (also called oratory or oration) is the process or act of performing a speech to a live audience.
Rhetoric is the art of discourse, wherein a writer or speaker strives to inform, persuade, or motivate particular audiences in specific situations.
In rhetoric, a rhetorical device, resource of language, or stylistic device is a technique that an author or speaker uses to convey to the listener or reader a meaning with the goal of persuading them towards considering a topic from a different perspective, using sentences designed to encourage or provoke an emotional display of a given perspective or action.
The ton is a unit of measure.
Understatement is a form of speech or disclosure which contains an expression of lesser strength than what would be expected.