exploitation vs usage

exploitation and usage both are nouns.

Word	Noun	Adjective	Verb	Adverb
exploitation	Yes	No	No	No
usage	Yes	No	No	No

As nouns, usage is a hypernym of exploitation; that is, usage is a word with a broader meaning than exploitation:

exploitation: the act of making some area of land or water more profitable or productive or useful
usage: the act of using

Other hypernyms of exploitation include employment, exercise, use, utilisation, utilization.

exploitation (noun)	usage (noun)
the act of making some area of land or water more profitable or productive or useful	the act of using
an act that exploits or victimizes someone (treats them unfairly)	accepted or habitual practice
	the customary manner in which a language (or a form of a language) is spoken or written