nylghau vs nylghai

nylghau and nylghai both are nouns.

Word	Noun	Adjective	Verb	Adverb
nylghau	Yes	No	No	No
nylghai	Yes	No	No	No

As nouns, nylghau and nylghai are synonyms defined as:

nylghau and nylghai: large Indian antelope; male is blue-grey with white markings; female is brownish with no horns

Other synonyms of nylghau include blue bull, Boselaphus tragocamelus, nilgai.

nylghau (noun)	nylghai (noun)
large Indian antelope; male is blue-grey with white markings; female is brownish with no horns	large Indian antelope; male is blue-grey with white markings; female is brownish with no horns