Used other than figuratively or idiomatically: see cylinder, head.

(intransitive, idiomatic, slang, vulgar) To perform oral sex on another person.

Having a bald head. / (nautical) (of a square-rigged ship) not having the royals set. / (nautical) (of a fore-and-aft rigged ship) having the topmasts struck down.

present participle of head-butt

Alternative spelling of headbutt

Alternative spelling of headbutt

A screwdriver with a '+' shaped head for turning screws so socketed. / A screw turned by such a screwdriver.

(idiomatic) An advantage consisting in starting a competition or task earlier than might be expected; given (or taken), for example, prior to the beginning of a race.

(idiomatic) To a considerable degree. / By force; violently.

In the United States, a government-funded preschool program for impoverished children.