n. someone who sees an event and reports what happened
n. testimony by word or deed to your religious faith
n. (law) a person who attests to the genuineness of a document or signature by adding their own signature
n. (law) a person who testifies under oath in a court of law
n. 证人, 目击者, 证据, 证词
vt. 目击, 作证, 证明, 表明
vi. 作证人, 作为证据