/ Thesaurus / S Synonyms of sergeant major Find synonyms for: Noun1. sergeant major, command sergeant major, sergeantusage: a noncommissioned officer serving as chief administrative officer of a headquarters unit of the Army2. sergeant major, Abudefduf saxatilis, damselfish, demoiselleusage: large blue-grey black-striped damselfish; nearly worldwideWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: illegible Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language