In a horizontal direction or position.

(music) a woodwind instrument similar to an oboe, but larger and pitched a fifth lower

(idiomatic) To stop acting in an imperious, overbearing or bossy manner.

(obsolete) a machine that used draft horses as a source of power

Alternative spelling of horsepower / Obsolete spelling of horse power

A horn on a fire alarm that sounds in case of fire, either automatically when the system detects fire or manually when the alarm is pulled, to alert the occupants of a building or complex of the hazard.

(simile, colloquial, vulgar, usually of a man) Having a large penis.

(colloquial, simile) To eat large amounts of food.

(military) In naval mine warfare, a switch in a mine operated by a projecting spike.

(UK) A motor vehicle for transporting horses. / A container for transporting horses in, whether by road, rail, or sea.