Noah Webster's Dictionary 1. (n.) Act or process of deducing or inferring. 2. (n.) Act of deducting or taking away; subtraction; as, the deduction of the subtrahend from the minuend. 3. (n.) That which is deduced or drawn from premises by a process of reasoning; an inference; a conclusion. 4. (n.) That which is deducted; the part taken away; abatement; as, a deduction from the yearly rent.

Multi-Version Concordance Deduction (1 Occurrence) Leviticus 27:18 But if he dedicates his field after the Jubilee, then the priest shall reckon to him the money according to the years that remain to the Year of Jubilee; and an abatement shall be made from your valuation. (See RSV)