/ Dictionary / Index D dos-à-dos: Meaning and Definition of Find definitions for: dos-à-dos Pronunciation: (dō'sē-dō', -zi- for 1, 2 Fr. dō-za-dō' for 3), [key] — n., pl. v., adv. -dos -dosed -dos•ing —n. do-si-do. —v.t., v.i. to do-si-do. —adv. back to back. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. DOS dosage Related Content Daily Word Quiz: belligerent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language