net income vs lucre

net income and lucre both are nouns.

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

As nouns, net income and lucre are synonyms defined as:

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

Other synonyms of net income include earnings, net, net profit, profit, profits.

net income (noun)	lucre (noun)
the excess of revenues over outlays in a given period of time (including depreciation and other non-cash expenses)	the excess of revenues over outlays in a given period of time (including depreciation and other non-cash expenses)
	informal terms for money