/ Thesaurus / D Synonyms of decapitation Find synonyms for: Noun1. decapitation, beheading, execution, executing, capital punishment, death penaltyusage: execution by cutting off the victim's head2. decapitation, beheading, killing, kill, putting to deathusage: killing by cutting off the headWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language