Breadcrumb Home > Thesaurus > O Synonyms of observer Find synonyms for: Noun 1. perceiver, percipient, observer, beholder, person, individual, someone, somebody, mortal, soul usage: a person who becomes aware (of things or events) through the senses 2. observer, commentator, expert usage: an expert who observes and comments on something WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of observer (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language