/ Dictionary / Index S step-on: Meaning and Definition of Find definitions for: step-on Pronunciation: (step'on", -ôn"), [key] — adj. made to open by the operation of a pedal, as a can for kitchen garbage. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: step-on (Thesaurus) step-off stepparent Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language