"deductible" in the noun sense
1. deductible
taxes) an amount that can be deducted (especially for the purposes of calculating income tax)
2. deductible
a clause in an insurance policy that relieves the insurer of responsibility to pay the initial loss up to a stated amount
"deductible" in the adjective sense
1. deductible
acceptable as a deduction (especially as a tax deduction)
Source: WordNet® (An amazing lexical database of English)
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