witness

1 to declare (something) to be true or genuine a notary public witnessing wills and other important documents Synonyms attest, authenticate, avouch, testify (to), vouch (for), certifyRelated Words guarantee, warrant; affirm, assert, aver, avow, profess, vow

2 to make note of (something) through the use of one's eyes witnessed the crime Synonyms behold, catch, descry, discern, distinguish, espy, eye, look (at), note, notice, observe, perceive, regard, remark, sight, spot, spy, view, seeRelated Words identify, make out, pick out, pick up; attend (to), consider, heed, mark, mind; study, watch; examine, inspect, scan, scrutinize, survey; glance (at), glimpse, peer (at)Near Antonyms disregard, ignore, neglect, overpass, pass over; miss, overlook

3 to make a solemn declaration under oath for the purpose of establishing a fact I witnessed to the fact that I had seen them together that night Synonyms attest, depose, swear, testifyRelated Words verify; vouch; promise, vow

4 to come to a knowledge of (something) by living through it war changes anyone who has ever witnessed it first hand Synonyms endure, feel, have, know, pass, see, suffer, sustain, taste, undergo, experienceRelated Words encounter, meet; accept, receive; assimilate, digest