coverage vs sum

coverage and sum both are nouns.

Word	Noun	Adjective	Verb	Adverb
coverage	Yes	No	No	No
sum	Yes	No	Yes	No

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

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

coverage (noun)	sum (noun)
the extent to which something is covered	the whole amount
the news as presented by reporters for newspapers or radio or television	the choicest or most essential or most vital part of some idea or experience
the total amount and type of insurance carried	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

coverage (verb)	sum (verb)
	determine the sum of
	be a summary of