/ Dictionary / Index D dead point: Meaning and Definition of Find definitions for: dead' point'. Pronunciation: [key] — Mach. Mach. See(def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. deadpan dead-reckon Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language