net profit vs earnings

net profit and earnings both are nouns.

Word	Noun	Adjective	Verb	Adverb
net profit	Yes	No	No	No
earnings	Yes	No	No	No

As nouns, net profit and earnings are synonyms defined as:

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

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

net profit (noun)	earnings (noun)
the excess of revenues over outlays in a given period of time (including depreciation and other non-cash expenses)	something that remunerates
	the excess of revenues over outlays in a given period of time (including depreciation and other non-cash expenses)