Open English Wordnet
Nouns
(n)tax write-off, tax deduction, deductiona reduction in the gross amount on which a tax is calculated; reduces taxes by the percentage fixed for the taxpayer's income bracket
(n)deduction, entailment, implicationsomething that is inferred (deduced or entailed or implied)“his resignation had political implications”
(n)deduction, deductive reasoning, synthesisreasoning from the general to the particular (or from cause to effect)
(n)subtraction, deductionthe act of subtracting (removing a part from the whole)“he complained about the subtraction of money from their paychecks”