blue bull vs nylghau

blue bull and nylghau both are nouns.

Word	Noun	Adjective	Verb	Adverb
blue bull	Yes	No	No	No
nylghau	Yes	No	No	No

As nouns, blue bull and nylghau are synonyms defined as:

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

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

blue bull (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