Nouns

(n)horse, Equus caballussolid-hoofed herbivorous quadruped domesticated since prehistoric times
(n)horse, gymnastic horsea padded gymnastic apparatus on legs
(n)cavalry, horse cavalry, horsetroops trained to fight on horseback“500 horse led the attack”
(n)sawhorse, horse, sawbuck, bucka framework for holding wood that is being sawed
(n)knight, horsea chessman shaped to resemble the head of a horse; can move two squares horizontally and one vertically (or vice versa)

Verbs

(v)horseprovide with a horse or horses