/ Dictionary / Index S staircase: Meaning and Definition of Find definitions for: stair•case Pronunciation: (stâr'kās"), [key] — n. a flight of stairs with its framework, banisters, etc., or a series of such flights. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: staircase (Thesaurus) stair stairhead Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language