Synonyms for Header (same or very similar meaning)
WordNet sense 1 (a line of text serving to indicate what the passage below it is about):
head, headingWordNet sense 2 (horizontal beam used as a finishing piece over a door or window):
lintelWordNet sense 3 (brick that is laid sideways at the top of a wall):
cope, copingFrom the ODE community, based on WordNetadd/edit