Arizona vs reptile genus

Arizona and reptile genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Arizona	Yes	No	No	No
reptile genus	Yes	No	No	No

As nouns, reptile genus is a hypernym of Arizona; that is, reptile genus is a word with a broader meaning than Arizona:

Arizona (noun)	reptile genus (noun)
glossy snake	a genus of reptiles
a state in southwestern United States; site of the Grand Canyon