/ Dictionary / Index S stool pigeon: Meaning and Definition of Find definitions for: stool' pi"geon Pronunciation: (st'lē), [key] a pigeon used as a decoy. Also calleda person employed or acting as a decoy or informer, esp. for the police. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: stoolpigeon (Thesaurus) stool stooly Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language