OBSERVER
Meaning of OBSERVER in English
n. Function: noun
Synonyms: SPECTATOR , beholder, by-sitter, bystander, eyewitness, looker-on, onlooker, viewer, watcher, witness
Merriam Webster.
Collegiate thesaurus English dictionary.
Английский энциклопедический толковый словарь тезауруса.
2012