A cow does not really bray or neigh. They make their own unique vocalizations, which are more like "moo" sounds.
A donkey brays, a horse neighs.
cow
The Bray family is a singular way to refer to the family. The Brays is a plural way to refer to the family. The Brays sent me a Christmas card because I work for Mr. Bray. The Brays becomes a plural possessive if we refer to something that belongs to the Brays. Ex. The Brays' dog always barks at me. Ex. The Brays' door was wide open. Ex. The Brays' house is for sale.
Brays
Donkey, mule.
Ba Ba from a sheep Na Na from a horse
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there is no opposite for neigh that i know of
The homonym of neigh is nay, which means no or a negative response.
A homophone for neigh is nay.
Neigh Neigh Spark Plug - 1929 was released on: USA: 24 March 1929
The horse let out a loud neigh as the farmer approached with its favorite treat.