n. 25B6; noun EYEWITNESS, witness, observer, looker-on, fly on the wall, spectator, watcher, viewer, bystander; sightseer; informal rubberneck; poetic/literary beholder.
ONLOOKER
Meaning of ONLOOKER in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012