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