contraction

nouns

(physiology) a shortening or tensing of a part or organ (especially of a muscle or muscle fiber)
is derived from
the process or result of becoming smaller or pressed together
"the contraction of a gas on cooling"
a word formed from two or more words by omitting or combining some sounds
"`won't' is a contraction of `will not'"; "`o'clock' is a contraction of `of the clock'"
is a type of (narrower)
a unit of language that native speakers can identify
"words are the blocks from which sentences are made"; "he hardly said ten words all morning"
the act of decreasing (something) in size or volume or quantity or scope
is derived from
is derived from
is derived from
is derived from
is derived from
antonym
is a type of (narrower)
the act of decreasing or reducing something