/ Dictionary / Index D decapitate: Meaning and Definition of Find definitions for: de•cap•i•tate Pronunciation: (di-kap'i-tāt"), [key] — -tat•ed, -tat•ing. to cut off the head of; behead: Many people were decapitated during the French Revolution. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: decapitate (Thesaurus) decapitalize decapod Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language