amount vs coverage

amount and coverage both are nouns.

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

As nouns, coverage is a hyponym of amount; that is, coverage is a word with a more specific, narrower meaning than amount:

amount (noun)	coverage (noun)
how much there is or how many there are of something that you can quantify	the extent to which something is covered
the relative magnitude of something with reference to a criterion	the news as presented by reporters for newspapers or radio or television
a quantity obtained by the addition of a group of numbers	the total amount and type of insurance carried
a quantity of money

amount (verb)	coverage (verb)
to measure up to in kind or quality
add up in number or quantity
be tantamount or equivalent to