/ Dictionary / Index D dictum: Meaning and Definition of Find definitions for: dic•tum Pronunciation: (dik'tum), [key] — pl. -ta -tums. an authoritative pronouncement; judicial assertion. a saying; maxim. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dictum (Thesaurus) Dictograph dicty Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language