/ Dictionary / Index O one-step: Meaning and Definition of Find definitions for: one-step Pronunciation: (wun'step"), [key] — n. a round dance performed by couples to ragtime. a piece of music for this dance. —v.i. to dance the one-step. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: one-step (Thesaurus) one-star one-stop Related Content Daily Word Quiz: morose Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language