earnings vs cleanup

earnings and cleanup both are nouns.

Word	Noun	Adjective	Verb	Adverb
earnings	Yes	No	No	No
cleanup	Yes	No	No	No

As nouns, cleanup is a hyponym of earnings; that is, cleanup is a word with a more specific, narrower meaning than earnings:

earnings: the excess of revenues over outlays in a given period of time (including depreciation and other non-cash expenses)
cleanup: a very large profit

earnings (noun)	cleanup (noun)
something that remunerates	the act of making something clean
the excess of revenues over outlays in a given period of time (including depreciation and other non-cash expenses)	(baseball) the fourth position in the batting order (usually filled by the best batter on the team)
	a very large profit