investing vs arbitrage

investing and arbitrage both are nouns.

Word	Noun	Adjective	Verb	Adverb
investing	Yes	No	No	No
arbitrage	Yes	No	Yes	No

As nouns, arbitrage is a hyponym of investing; that is, arbitrage is a word with a more specific, narrower meaning than investing:

investing: the act of investing; laying out money or capital in an enterprise with the expectation of profit
arbitrage: a kind of hedged investment meant to capture slight differences in price; when there is a difference in the price of something on two different markets the arbitrageur simultaneously buys at the lower price and sells at the higher price

Other hyponyms of investing include foreign direct investment, leverage, leveraging, long-term investment.

investing (noun)	arbitrage (noun)
the act of investing; laying out money or capital in an enterprise with the expectation of profit	a kind of hedged investment meant to capture slight differences in price; when there is a difference in the price of something on two different markets the arbitrageur simultaneously buys at the lower price and sells at the higher price

investing (verb)	arbitrage (verb)
	practice arbitrage, as in the stock market