Plato's Academy vs academy

Plato's Academy and academy both are nouns.

Word	Noun	Adjective	Verb	Adverb
Plato's Academy	Yes	No	No	No
academy	Yes	No	No	No

As nouns, academy is a hypernym of Plato's Academy; that is, academy is a word with a broader meaning than Plato's Academy:

Plato's Academy (noun)	academy (noun)
a school established by Plato in ancient Athens	a learned establishment for the advancement of knowledge
	a secondary school (usually private)
	a school for special training
	an institution for the advancement of art or science or literature