header

(noun) a line of text serving to indicate what the passage below it is about. Synonyms: heading, head. Examples: "The heading seemed to have little to do with the text."

(noun) horizontal beam used as a finishing piece over a door or window. Synonyms: lintel.

(noun) brick that is laid sideways at the top of a wall. Synonyms: coping, cope.

(noun) a framing member crossing and supporting the ends of joists, studs, or rafters so as to transfer their weight to parallel joists, studs, or rafters.

(noun) a machine that cuts the heads off grain and moves them into a wagon.

(noun) (soccer) the act of hitting the ball with your head.

(noun) a headlong jump (or fall). Examples: "He took a header into the shrubbery."