Neigh/neɪ/ Definition 1 of 3Pro Tip 1/3Animal Sounds Neigh is specific to horses, similar to how dogs bark and cats meow. At the farm, ducks quacked, cows mooed, and the horse neighed. Pro Tip 2/3Express Emotions Horses may neigh to express various emotions, like excitement or frustration. The horse neighed excitedly when it saw the open field. Pro Tip 3/3Volume Context Neighing can be loud or soft, indicating the horse's state or distance. A distant, soft neigh suggested the stallion was far away.