/ Dictionary / Index S step-down: Meaning and Definition of Find definitions for: step-down Pronunciation: (step'doun"), [key] — adj. Elect. serving to reduce or decrease voltage: a step-down transformer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: step-down (Thesaurus) stepdaughter stepfamily Related Content Daily Word Quiz: supine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language