bovine vs ox

bovine and ox both are nouns.

Word	Noun	Adjective	Verb	Adverb
bovine	Yes	Yes	No	No
ox	Yes	No	No	No

As nouns, ox is a hyponym of bovine; that is, ox is a word with a more specific, narrower meaning than bovine:

bovine: any of various members of the genus Bos
ox: any of various wild bovines especially of the genera Bos or closely related Bibos

Other hyponyms of bovine include wild ox, Bos taurus, cattle, cows, kine, oxen, Bos indicus, Brahma, Brahman, Brahmin.

bovine (noun)	ox (noun)
any of various members of the genus Bos	any of various wild bovines especially of the genera Bos or closely related Bibos
	an adult castrated bull of the genus Bos; especially Bos taurus

bovine (adjective)	ox (adjective)
of or relating to or belonging to the genus Bos (cattle)
dull and slow-moving and stolid; like an ox