intransitive. To utter a low somewhat shrill protracted sound or cry, usually expressive of pain or… of animals, esp. dogs; also formerly, to…

intransitive. To neigh as a horse, to whinny.

intransitive. Of a horse: to whinny. Obsolete. rare.

intransitive. Of a horse: To neigh, esp. in a low or gentle way; also occasionally of other animals, as calves or certain birds, or of inanimate…

intransitive. To neigh, whinny; (also, in extended use) to snigger.

Of a horse: To whinny; also of a sheep or goat, to bleat, of a dog, to whine, etc.