noun1. a domesticated perissodactyl mammal, Equus caballus, used for draught work and riding: family Equidae
▶ Related adjective:
equine 2. the adult male of this species; stallion
3. wild horse
4. a. any other member of the family Equidae, such as the zebra or ass
b. (as modifier)
the horse family
5. (functioning as plural) horsemen, esp cavalry
a regiment of horse
6. Also called: buck gymnastics a padded apparatus on legs, used for vaulting, etc
7. a narrow board supported by a pair of legs at each end, used as a frame for sawing or as a trestle, barrier, etc
8. a contrivance on which a person may ride and exercise
9. a slang word for heroin
10. mining a mass of rock within a vein of ore
11. nautical a rod, rope, or cable, fixed at the ends, along which something may slide by means of a thimble, shackle, or other fitting; traveller
12. chess an informal name for knight
13. informal short for horsepower
14. (modifier) drawn by a horse or horses
a horse cart
15. a horse of another colour
16. be on one's high horse
17. flog a dead horse
18. hold one's horses
19. horses for courses
20. the horse's mouth
21. to horse!
verb22. (transitive) to provide with a horse or horses
23. to put or be put on horseback
24. (transitive) to move (something heavy) into position by sheer physical strength