horse

1. a large, solid-hoofed, herbivorous quadruped, Equus caballus, domesticated since prehistoric times, bred in a number of varieties, and used for carrying or pulling loads, for riding, and for racing.
2. a fully mature male animal of this type; stallion.
3. any of several perissodactyls belonging to the family Equidae, including the horse, zebra, donkey, and ass, having a thick, flat coat with a narrow mane along the back of the neck and bearing the weight on only one functioning digit, the third, which is widened into a round or spade-shaped hoof.
4. something on which a person rides, sits, or exercises, as if astride the back of such an animal:

   rocking horse.

5. Also called trestle. a frame, block, etc., with legs, on which something is mounted or supported.
6. Gymnastics.
   1. vaulting horse.
   2. pommel horse.
7. Carpentry. carriage ( def 7 ).
8. soldiers serving on horseback; cavalry:

   a thousand horse.

9. Slang. a man; fellow.
10. Often horses. Informal. horsepower.
11. horses, Slang. the power or capacity to accomplish something, as by having enough money, personnel, or expertise:

    Our small company doesn't have the horses to compete against a giant corporation.

12. Chess Informal. a knight.
13. Slang. a crib, translation, or other illicit aid to a student's recitation; trot; pony.
14. Mining. a mass of rock enclosed within a lode or vein.
15. Nautical. traveler ( def 6b ).
16. Shipbuilding. a mold of a curved frame, especially one used when the complexity of the curves requires laying out at full size.
17. Slang. heroin.

1. to provide with a horse or horses.
2. to set on horseback.
3. to set or carry on a person's back or on one's own back.
4. Carpentry. to cut notches for steps into (a carriage beam).
5. to move with great physical effort or force:

   It took three men to horse the trunk up the stairs.

6. Slang.
   1. to make (a person) the target of boisterous jokes.
   2. to perform boisterously, as a part or a scene in a play.
7. Nautical.
   1. to caulk (a vessel) with a hammer.
   2. to work or haze (a sailor) cruelly or unfairly.
8. Archaic. to place (someone) on a person's back, in order to be flogged.

1. to mount or go on a horse.
2. (of a mare) to be in heat.
3. Vulgar. to have sexual intercourse.

1. of, for, or pertaining to a horse or horses:

   the horse family; a horse blanket.

2. drawn or powered by a horse or horses.
3. mounted or serving on horses:

   horse troops.

4. unusually large.

verb phrase

1. Slang. to fool around; indulge in horseplay.