peanuts vs amount of money

peanuts and amount of money both are nouns.

Word	Noun	Adjective	Verb	Adverb
peanuts	Yes	No	No	No
amount of money	Yes	No	No	No

As nouns, amount of money is a hypernym of peanuts; that is, amount of money is a word with a broader meaning than peanuts:

Other hypernyms of peanuts include amount, sum, sum of money.

peanuts (noun)	amount of money (noun)
an insignificant sum of money; a trifling amount	a quantity of money