nylghai vs nylghau

nylghai and nylghau both are nouns.

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

As nouns, nylghai and nylghau are synonyms defined as:

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

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

nylghai (noun)	nylghau (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