fair use vs enjoyment

fair use and enjoyment both are nouns.

Word	Noun	Adjective	Verb	Adverb
fair use	Yes	No	No	No
enjoyment	Yes	No	No	No

As nouns, enjoyment is a hypernym of fair use; that is, enjoyment is a word with a broader meaning than fair use:

fair use: the conditions under which you can use material that is copyrighted by someone else without paying royalties
enjoyment: (law) the exercise of the legal right to enjoy the benefits of owning property

Other hypernyms of fair use include use.

fair use (noun)	enjoyment (noun)
the conditions under which you can use material that is copyrighted by someone else without paying royalties	act of receiving pleasure from something
	(law) the exercise of the legal right to enjoy the benefits of owning property
	the pleasure felt when having a good time