cash advance vs sum

cash advance and sum both are nouns.

Word	Noun	Adjective	Verb	Adverb
cash advance	Yes	No	No	No
sum	Yes	No	Yes	No

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

Other hypernyms of cash advance include amount, amount of money, sum of money.

cash advance (noun)	sum (noun)
an amount paid before it is earned	the whole amount
	the choicest or most essential or most vital part of some idea or experience
	a quantity obtained by the addition of a group of numbers
	the final aggregate
	a set containing all and only the members of two or more given sets
	a quantity of money

cash advance (verb)	sum (verb)
	determine the sum of
	be a summary of