Movement:
* Run: galloping, cantering, trotting, pacing,
* Walk: strolling, ambling,
* Jump: leap, clear, hurdle,
* Stand: pose, graze, rest,
* Lie: sleep, relax, snooze,
* Kick: rear, strike, lash out,
* Buck: jump, thrash, throw,
* Neigh: whinny, call, snort,
* Sniff: smell, investigate,
Human Interaction:
* Train: teach, break, discipline,
* Ride: mount, guide, control,
* Groom: brush, clean, wash,
* Feed: graze, eat,
* Lead: guide, walk, steer,
* Catch: approach, secure, halter,
General:
* Graze: eat, forage, nibble,
* Rest: relax, sleep, doze,
* Look: gaze, stare, watch,
* Play: frolic, run, roll,
* Fight: kick, bite, charge,
* Escape: run, break free, bolt,
More Descriptive:
* Prance: strut, swagger,
* Charge: rush, bolt, attack,
* Stumble: trip, falter,
* Gallop: race, speed,
* Scamper: run, skip,
* Twitch: fidget, shake,
Remember to consider the context of the sentence and the specific breed and temperament of the horse when choosing a verb.