/ Dictionary / Index D dead-reckon: Meaning and Definition of Find definitions for: dead-reck•on Pronunciation: (ded'rek'un), [key] — v.t. Navig. to calculate (one's position) by means of dead reckoning. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dead point dead reckoning Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language