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rust
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- pronunciation:
- ruhst
- parts of speech:
- noun, verb
- features:
- Word Explorer
| part of speech: |
noun |
| definition: |
Rust is an orange or reddish-brown coating that forms on metal that has been in contact with both air and water. When metal gets rust on it, the metal gets weak.
The pipe outside has rust on it and needs to be replaced.That bike was left outside all winter, and now the metal parts have rust on them.
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| related words: |
mold |
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| part of speech: |
verb |
| inflections: |
rusts, rusting, rusted |
| definition: |
When something rusts, it gets rust on it. Rust is an orange or reddish-brown coating that forms on metal that has been in contact with both air and water.
The old, abandoned car has been rusting for many years.
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