What is the meaning of Heading?

present participle and gerund of head

The title or topic of a document, article, chapter, or of a section thereof.

The direction into which a seagoing or airborne vessel's bow is pointing (apparent heading) and/or the direction into which it is actually moving relative to the ground (true heading)

Material for the heads of casks, barrels, etc.

A gallery, drift, or adit in a mine, particularly one driving through a solid body of coal or ore; also, the end of a drift or gallery; the vein above a drift.

The extension of a line ruffling above the line of stitch.

The end of a stone or brick which is presented outward.

A strip of material at the hoist end of a flag, used for attaching the flag to its halyard.

Alternative spelling of hedding

Source: wiktionary.org