gain vs profit

gain and profit both are nouns.

Word	Noun	Adjective	Verb	Adverb
gain	Yes	No	Yes	No
profit	Yes	No	Yes	No

As nouns, gain and profit are synonyms defined as:

As verbs, profit is a hyponym of gain; that is, profit is a word with a more specific, narrower meaning than gain:

gain: earn on some commercial or business transaction; earn as salary or wages
profit: make a profit; gain money or materially

As verbs, gain and profit are synonyms defined as:

Other synonyms of gain include benefit.

gain (noun)	profit (noun)
the amount of increase in signal power or voltage or current expressed as the ratio of output to input	the advantageous quality of being beneficial
the advantageous quality of being beneficial	the excess of revenues over outlays in a given period of time (including depreciation and other non-cash expenses)
the amount by which the revenue of a business exceeds its cost of operating
a quantity that is added

gain (verb)	profit (verb)
increase (one's body weight)	make a profit; gain money or materially
rise in rate or price	derive a benefit from
increase or develop
obtain advantages, such as points, etc.
reach a destination, either real or abstract
earn on some commercial or business transaction; earn as salary or wages
win something through one's efforts
derive a benefit from
obtain