attestor

attestant attestator deponent testifier

corroborator

affiant attestant attester deposer testifier

attestant attester beholder bystander deponent eyewitness gawker looker-on observer onlooker proof rubbernecker signatory signer spectator testimony viewer watcher

corroborator

participant

observer onlooker spectator watcher

attestant beholder bystander deponent eyewitness gawker looker-on proof rubbernecker seer signatory signer testifier testimony

corroborator

participant

bystander eyewitness observer spectator testimony

attestant beholder deponent gawker looker-on onlooker proof rubbernecker signatory signer testifier viewer watcher

corroborator

participant