plural of subject heading

present participle of head off

plural of running heading (alternative form of running headlines).

Alternative form of running headline.

(rail transport) The use of two locomotives at the front, or head, of a train.

present participle of double-head

(rail transport) The use of three locomotives at the front, or head, of a train.

present participle of head south

(rail transport) The haulage of a train by one locomotive.

(Canada) Where things are headed; to a predicted future state of things.