1. One that fits a head on an object. 2. One that removes a head from an object, especially a machine that reaps the heads of grain and passes them into a wagon or receptacle. 3. A pipe that serves as a central connection for two or more smaller pipes. 4. A floor or roof beam placed between two long beams that supports the ends of the tailpieces. 5. A brick or stone laid at a right angle to the face of a wall so that only its short end is showing. Also called bonder. 6.Informal A headlong dive or fall. 7.Sports A pass or shot made in soccer by heading the ball. 8. Textual information, such as a title, date, or page number, positioned in the top margin of a page and usually repeated throughout a document. 9. A raised tank or hopper that maintains a constant pressure or supply to a system, especially the small tank that supplies water to a central heating system.