heading

(n) a line of text serving to indicate what the passage below it is about
- the heading seemed to have little to do with the text
header, head,
(n) the direction or path along which something moves or along which it lies bearing, aim,
(n) a horizontal (or nearly horizontal) passageway in a mine
- they dug a drift parallel with the vein
drift, gallery,

header head bearing aim drift gallery