/ Dictionary / Index W warmouth: Meaning and Definition of Find definitions for: war•mouth Pronunciation: (wôr'mouth"), [key] — pl. -mouths -mouth. a freshwater sunfish, Lepomis gulosus, of the eastern U.S., having a patch of small teeth on its tongue. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. warmongering warm sector Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language