contribution vs amount of money

contribution and amount of money both are nouns.

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

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

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

contribution (noun)	amount of money (noun)
act of giving in common with others for a common purpose especially to a charity	a quantity of money
a writing for publication especially one of a collection of writings as an article or story
the effort contributed by a person in bringing about a result
a voluntary gift (as of money or service or ideas) made to some worthwhile cause
an amount of money contributed