a shot or pass in football made by heading the ball
informal a headfirst fall or dive
a brick or stone laid in a wall with its end towards the face of the wall: compare stretcher1 (3)
a person or device that forms or removes heads, e.g. a grain-harvesting machine that cuts off grain heads
a raised water tank that maintains fluid pressure in a plumbing system, etc
a line of text appearing at the top of each page of a book, etc