deficiency vs amount

deficiency and amount both are nouns.

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

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

deficiency (noun)	amount (noun)
lack of an adequate quantity or number	how much there is or how many there are of something that you can quantify
the state of needing something that is absent or unavailable	the relative magnitude of something with reference to a criterion
	a quantity obtained by the addition of a group of numbers
	a quantity of money

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