/ Dictionary / Index S stand-in: Meaning and Definition of Find definitions for: stand-in Pronunciation: (stand'in"), [key] — n. a substitute for a motion-picture star during the preparation of lighting, cameras, etc., or in dangerous scenes. any substitute. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: stand-in (Thesaurus) standfast standing Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language