/ Thesaurus Find synonyms for: Noun1. yarrow, milfoil, Achillea millefolium, achilleausage: ubiquitous strong-scented mat-forming Eurasian herb of wasteland, hedgerow or pasture having narrow serrate leaves and small usually white florets; widely naturalized in North AmericaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.See also: yarrow (Dictionary) Related Content Daily Word Quiz: ephemeral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language Synonyms Index