/ Dictionary / Index S shoo-in: Meaning and Definition of Find definitions for: shoo-in Pronunciation: (sh'in"), [key] — n. Informal. a candidate, competitor, etc., regarded as certain to win. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: shoo-in (Thesaurus) shoo-fly pie shook Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language