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# erosion

noun (erosion — uncountable)

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

## Everyday

1. Erosion is the slow wearing away of rock, soil or land by water, wind, ice or waves. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/E/erosion/#m1)
2. Erosion can mean the slow weakening or loss of something, like trust or rights. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/E/erosion/#m2)

### In the lessons

A key geography and science word: rivers carve valleys, waves erode cliffs, wind blows away soil. Planting trees and grass helps stop erosion. In formal writing it can describe something slowly getting worse. Phrases: soil erosion, coastal erosion, wind erosion, the erosion of trust.

### Examples

- Coastal erosion has made the cliff fall into the sea. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/E/erosion/#x1)
- Tree roots help prevent soil erosion. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/E/erosion/#x2)
- The Grand Canyon was made by erosion over millions of years. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/E/erosion/#x3)
- Wind erosion shaped the strange rocks in the desert. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/E/erosion/#x4)
- The farmers planted hedges to stop erosion. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/E/erosion/#x5)
- Erosion is slow, but it never stops. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/E/erosion/#x6)
- Lies caused an erosion of trust between the friends. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/E/erosion/#x7)

### Note

Uncountable: «erosion», not «an erosion» usually. Verb: erode. Do not confuse with «weathering» (rock breaking up where it is) — erosion means the pieces are carried away. Also not «corrosion» (metal being eaten away by rust or chemicals).

## On Mova

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