revenue vs sum of money

revenue and sum of money both are nouns.

Word	Noun	Adjective	Verb	Adverb
revenue	Yes	No	No	No
sum of money	Yes	No	No	No

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

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

revenue (noun)	sum of money (noun)
the entire amount of income before any deductions are made	a quantity of money
government income due to taxation