/ Thesaurus / P Synonyms of passer by Find synonyms for: Noun1. passerby, passer-by, passer, pedestrian, walker, footerusage: a person who passes by casually or by chanceWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: winsome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language