Whinny. (informal, "neigh" (pronounced "naye"))
Whinnying
WHINNY or NICKER
Neigh!!!
Horses.
Relinchh !
A horse makes a whinny sound.
The warning sound a horse would make in this situation is a loud blowing out, nostrils flared, eyes wide, ears forward and alert. This blowing sound will get the attention of any horse in the immediate vicinity.
The sound that a horse utters is called a neigh.
There's a type of training you can use with your horse. I think it's called sounding. It also depends on what the horse is afraid of. Cherry Hill wrote a book called "How to Think Like a Horse" that touches on how to make your horse become sound. Rewards for horses are key to training!
Ed
a mule makes a sound that is similar to a donkey's but also has the whinnying characteristics of a horse
Horse sound are a bit nasally as they use their nostrils to generate sound. The sounds they make are anything from soft nickers that sound like nnnhehheh to loud squeals when angry. And when calling to a buddy at a distance they make a sound that sounds like NEEEEHAHEH, (you need to imagine that with a slight stutter.) In Vietnamese it is Hí híhíhí
A sound the horses make as a way to show their desire (sexually) for another horse. This call usually leads to increased sexual desire.