Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb behead
1 sense of behead
Sense 1
decapitate, behead, decollate -- (cut the head of; "the French King was beheaded during the Revolution")
=> kill -- (cause to die; put to death, usually intentionally or knowingly; "This man killed several people when he tried to rob a bank"; "The farmer killed a pig for the holidays")