The uppermost or furthermost portion of a valley, cave, inlet, etc. Also: that end of a lake or other body of water at which a river or stream…

The head, top, upper end (of anything). Obsolete.

The end or topmost part; (perhaps) = finial, n. a.

concrete. The head or chief extremity.

The highest place or position.

The higher end of anything on a slope; †the head or source of a river (obsolete), the head of a lake (archaic), of a street, etc.; also that end…