/ Thesaurus / A Synonyms of air mass Find synonyms for: Noun1. air mass, atmosphere, atmospheric stateusage: a large body of air with uniform characteristics horizontallyWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language