deductible vs deduct

deductible is a noun but deduct is not a noun.

Word	Noun	Adjective	Verb	Adverb
deductible	Yes	Yes	No	No
deduct	No	No	Yes	No

deductible (noun)	deduct (noun)
a clause in an insurance policy that relieves the insurer of responsibility to pay the initial loss up to a stated amount
(taxes) an amount that can be deducted (especially for the purposes of calculating income tax)

deductible (adjective)	deduct (adjective)
acceptable as a deduction (especially as a tax deduction)

deductible (verb)	deduct (verb)
	reason by deduction; establish by deduction
	make a subtraction
	retain and refrain from disbursing; of payments