/ Dictionary / Index D deathday: Meaning and Definition of Find definitions for: death•day Pronunciation: (deth'dā"), [key] — n. the day or the anniversary of the day of a person's death. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. death cup death duty Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language