Breadcrumb Home > Thesaurus > C Synonyms of copilot Find synonyms for: Noun1. copilot, co-pilot, pilot, airplane pilotusage: a relief pilot on an airplaneWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of copilot (Dictionary) ✖ Related Content Daily Word Quiz: hortatory Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language