To "behead" means to cut off someone's head, usually as a form of execution or violence.
Sentences with «behead»
She was then beheaded by the sword for the name and sake of the Lord Jesus Christ whom she refused to renounce despite many threats and persuasions. (religion-online.org)
I wondered if Meg knew that [names redacted] had been beheaded for letting her escape. (goodreads.com)
And how about the man who beheaded someone on a bus? (remonline.com)