名詞 deduction:

1. a reduction in the gross amount on which a tax is calculated; reduces taxes by the percentage fixed for the taxpayer's income bracket
   同義詞：tax write-off, tax deduction
2. an amount or percentage deducted
   同義詞：discount
3. something that is inferred (deduced or entailed or implied)
   同義詞：entailment, implication
4. reasoning from the general to the particular (or from cause to effect)
   同義詞：deductive reasoning, synthesis
5. the act of subtracting (removing a part from the whole)
   同義詞：subtraction
6. the act of reducing the selling price of merchandise
   同義詞：discount, price reduction

1. A conclusion drawn; a deduction.
   推斷得出的結(jié)論; 歸納的結(jié)果
2. Her deduction that he was now dead was correct.
   她作出的他此時(shí)已經(jīng)死亡的推論是正確的。
3. Net salary is gross salary minus tax and national insurance deduction.
   凈工資是工資總額減去稅收和扣除國(guó)民保險(xiǎn)。

de.duc.tion

n.（名詞）
The act of deducting; subtraction.
扣除；減除
An amount that is or may be deducted:
扣除額，減除數(shù)被扣除或可以被扣除的量：
例句：
tax deductions.
減除稅額

The drawing of a conclusion by reasoning; the act of deducing.
推論：通過(guò)推理得出結(jié)論；推斷
Logic
【邏輯學(xué)】
The process of reasoning in which a conclusion follows necessarily from the stated premises; inference by reasoning from the general to the specific.
演繹：推理的過(guò)程，在此過(guò)程中必然可從所述前提得出一個(gè)結(jié)論；從一般推向特殊的推論
A conclusion reached by this process.
用演繹推得的結(jié)論