/ Thesaurus / P Synonyms of peat moss Find synonyms for: Noun1. sphagnum, sphagnum moss, peat moss, bog moss, mossusage: any of various pale or ashy mosses of the genus Sphagnum whose decomposed remains form peatWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: philanthropy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language