/ Dictionary / Index D do-or-die: Meaning and Definition of Find definitions for: do-or-die Pronunciation: (d'ur-dī'), [key] — adj. reflecting or characterized by an irrevocable decision to succeed at all costs; desperate; all-out: a do-or-die attempt to halt the invaders. involving a potentially fatal crisis or crucial emergency. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: do-or-die (Thesaurus) door check doorframe Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language