is a specific kind of: equid, equine.

is a broader term that covers: roan | stable companion, stablemate | gee-gee | dawn horse, eohippus | mesohippus | protohippus | male horse | female horse, mare | mount, riding horse, saddle horse | pony | polo pony | wild horse | hack | hack, jade, nag, plug | pony | bangtail, race horse, racehorse | steeplechaser | stalking-horse | harness horse | workhorse | post-horse, post horse, poster | pacer | high stepper, stepper | chestnut | liver chestnut | bay | sorrel | palomino | pinto ... show more.

has as a part: encolure | horseback | horse's foot | withers | gaskin | poll | horseflesh, horsemeat.

has as a member: foal.

is a member of: Equus, genus Equus.

derivation: horse.