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# reduction

noun (a reduction, reductions)

«reduction» in the English dictionary: everyday and in Jewish tradition — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. A reduction is making something smaller or less, or the amount by which it is made smaller. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/reduction/#m1)
2. A reduction in a shop is a lower price; a discount. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/reduction/#m2)
3. In maths, reduction can mean making a shape or picture smaller by a scale factor, or simplifying a fraction. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/reduction/#m3)

### In the lessons

In maths: price reductions and percentages ("a 20% reduction"), scale drawings. In science and everyday life: reduction of waste, noise or speed. Phrases: price reduction, a reduction of, a reduction in, reduce, reuse, recycle.

### Examples

- There is a 10% reduction on all toys. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/reduction/#x1)
- The reduction in speed made the road safer. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/reduction/#x2)
- A reduction of 5 dollars makes the book cost 15 dollars. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/reduction/#x3)
- We want a reduction in plastic waste. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/reduction/#x4)
- The photo is a reduction of the real painting. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/reduction/#x5)
- The new rule led to a big reduction in litter. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/reduction/#x6)
- Find the price after a reduction of a quarter. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/reduction/#x7)
- Writing 4/8 as 1/2 is a reduction to simplest form. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/reduction/#x8)

### Note

Verb: reduce. Countable. "Reduction in" (what got smaller); "reduction of" (by how much). Maths: new amount = old amount - reduction. A 25% reduction on 40 is 10, so the new price is 30. Trap: the reduction is the amount taken off, not the new price.

## In Jewish tradition

In Sefer Yetzirah it means bringing the idea of a letter down into its written form.

**Interpretation.** In Sefer Yetzirah a thing's thought, speech and writing form a unity that has creative power.

### Examples

- and its reduction to writing, form a unity which produce a creative effect. 1 (Sefer Yetzirah, Kalisch 1877) [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/judaism/R/reduction/#x1)

### Note

Verb: reduce. Countable. "Reduction in" (what got smaller); "reduction of" (by how much). Maths: new amount = old amount - reduction. A 25% reduction on 40 is 10, so the new price is 30. Trap: the reduction is the amount taken off, not the new price.

## On Mova

- [Trees and pragmatics of «reduction» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/reduction/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«reduction» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/reduction.html) on Mova free.
- [Trees and pragmatics of «reduction» in the Judaism dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/judaism/R/reduction/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«reduction» in the Judaism dictionary](https://mova.elamur.ai/free/en/dictionaries/judaism/w/reduction.html) on Mova free.