/ Thesaurus / S Synonyms of stomach ache Find synonyms for: Noun1. stomachache, stomach ache, bellyache, gastralgia, ache, achingusage: an ache localized in the stomach or abdominal regionWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: languid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language