n. 25B6; noun ONLOOKER, looker-on, passer-by, non-participant, observer, spectator, eyewitness, witness, watcher; informal gawper, rubberneck.
BYSTANDER
Meaning of BYSTANDER in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012