academic vs academy

academic and academy both are nouns.

Word	Noun	Adjective	Verb	Adverb
academic	Yes	Yes	No	No
academy	Yes	No	No	No

academic (noun)	academy (noun)
an educator who works at a college or university	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

academic (adjective)	academy (adjective)
associated with academia or an academy
marked by a narrow focus on or display of learning especially its trivial aspects
hypothetical or theoretical and not expected to produce an immediate or practical result