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# deduction

«deduction» in Mova's school dictionary: **An amount taken away from a total (a deduction from your…** — its meaning for a pupil, its sense in the lessons and examples.

### part of speech

noun (a deduction, deductions; deduction, uncountable)

### meaning for a pupil

1) An amount taken away from a total (a deduction from your pay). [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/deduction/#m1)

2) Working something out by reasoning from facts you know (Sherlock Holmes's deductions). [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/deduction/#m2)

3) A conclusion you reach that way. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/deduction/#m3)

### sense in the lessons

In maths: deductions of money or points mean subtraction. In science and detective stories: deduction from clues; logical reasoning in maths proofs. Phrases: tax deduction, powers of deduction, by deduction.

### examples

- After the deduction of tax, he got 300 pounds. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/deduction/#x1)
- The detective made a clever deduction from the muddy boots. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/deduction/#x2)
- By deduction, the missing number must be 7. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/deduction/#x3)
- There's a 5-point deduction for every mistake. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/deduction/#x4)
- Good scientists use deduction and evidence. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/deduction/#x5)
- Your deduction was correct! [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/deduction/#x6)

### note

Two meanings from two verbs: deduct (take away) and deduce (work out). In word problems, «a deduction of 20» means subtract 20.

### Trees and pragmatics

[Every meaning and example of «deduction» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/deduction/), each sentence with its dependency tree and frames.