He has a pumpkin head.

I need to head off to the meeting.

The head of state is responsible for representing the country on the international stage.

I will head up the project.

Solving this math problem is a real head scratcher.

He is so pig-headed that he never listens to anyone else's opinion.

I woke up with a terrible bed-head this morning.

She fell head over heels for him.

I'm in over my head with this project.