Synonyms of witnesses

1 Syllable
proof
2 Syllables
playgoer, showgoer, gated, signer, hearers, playgoers, showgoers, watcher, viewer, gawker, hearer, gating
3 Syllables
theatergoer, observer, deponent, onlooker, attestant, attestor, looker-on, testifier, moviegoer, moviegoers, theatergoers, beholder, audience, bystander, eyewitness, spectator
4 Syllables
signatory, rubbernecker, testimony
5 Syllables
corroborator