'approximate' definitions:

Definition of 'approximate'

From: WordNet
adjective
Not quite exact or correct; "the approximate time was 10 o'clock"; "a rough guess"; "a ballpark estimate" [syn: approximate, approximative, rough]
adjective
Very close in resemblance; "sketched in an approximate likeness"; "a near likeness" [syn: approximate, near]
adjective
Located close together; "with heads close together"; "approximate leaves grow together but are not united" [syn: approximate, close together(p)]
verb
Be close or similar; "Her results approximate my own" [syn: approximate, come close]
verb
Judge tentatively or form an estimate of (quantities or time); "I estimate this chicken to weigh three pounds" [syn: estimate, gauge, approximate, guess, judge]

Synonyms of 'approximate'

From: Moby Thesaurus