/ Thesaurus / F Synonyms of first sergeant Find synonyms for: Noun1. first sergeant, sergeant first class, sergeantusage: a sergeant in the Army above the rank of staff sergeant and below master sergeantWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: grimace Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language