/ Dictionary / Index S stepson: Meaning and Definition of Find definitions for: step•son Pronunciation: (step'sun"), [key] — n. a son of one's husband or wife by a previous marriage. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: stepson (Thesaurus) stepsister stepstool Related Content Daily Word Quiz: crockery Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language