|1.||a title for a page, paragraph, chapter, etc|
|2.||a main division, as of a lecture, speech, essay, etc|
|a. a horizontal tunnel|
|b. the end of such a tunnel|
|4.||the angle between the direction of an aircraft and a specified meridian, often due north|
|5.||the compass direction parallel to the keel of a vessel|
|6.||the act of heading|
|7.||anything that serves as a head|
The uppermost or forwardmost part of the human body, containing the brain and the eyes, ears, nose, mouth, and jaws.
The analogous part of various vertebrate and invertebrate animals.
The pus-containing tip of an abscess, a boil, or a pimple.
The rounded proximal end of a long bone.
The end of a muscle that is attached to the less movable part of the skeleton.