Synonyms for Heading (same or very similar meaning)
WordNet sense 1 (the direction or path along which something moves or along which it lies):
aim, bearingWordNet sense 2 (a line of text serving to indicate what the passage below it is about):
head, headerWordNet sense 3 (a horizontal (or nearly horizontal) passageway in a mine):
drift, galleryFrom the ODE community, based on WordNetadd/edit