net income vs cleanup

net income and cleanup both are nouns.

Word	Noun	Adjective	Verb	Adverb
net income	Yes	No	No	No
cleanup	Yes	No	No	No

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

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

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