deduction Definition

1. The act or process of deducting.
2. Something, especially money, which has been or will be deducted.

Thesaurus: reduction, discount, subtraction, withdrawal, decrease; Antonym: addition, increase.
3. The act or process of deducing, especially of deducing a particular fact from what one knows or thinks to be generally true.

Thesaurus: conclusion, finding, result, assumption, inference, reasoning, judgement, opinion, corollary.
4. Something that has been deduced. Compare induction.