/ Dictionary / Index A All Souls' Day: Meaning and Definition of Find definitions for: All' Souls'' Day" Pronunciation: [key] a day of solemn prayer for all dead persons, observed by Roman Catholics and certain Anglicans, usually on November 2. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. allseed allspice Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language