lucre vs net income

lucre and net income both are nouns.

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

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

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

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

lucre (noun)	net income (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