killing vs profit

killing and profit both are nouns.

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

As nouns, profit is a hypernym of killing; that is, profit is a word with a broader meaning than killing:

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

Other hypernyms of killing include earnings, lucre, net, net income, net profit, profits.

killing (noun)	profit (noun)
the act of terminating a life	the advantageous quality of being beneficial
an event that causes someone to die	the excess of revenues over outlays in a given period of time (including depreciation and other non-cash expenses)
a very large profit

killing (adjective)	profit (adjective)
very funny

killing (verb)	profit (verb)
	make a profit; gain money or materially
	derive a benefit from