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rust
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- pronunciation:
- ruhst
- parts of speech:
- noun, verb
- features:
- Word Combinations (noun, verb), Word Explorer
| part of speech: |
noun |
| definition: |
an orange, red, or brown substance that forms on the surface of some metals that have had contact with water and air.
The metal parts of the old bicycle have rust.
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| related words: |
mold |
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| part of speech: |
verb |
| inflections: |
rusts, rusting, rusted |
| definition: |
to become rusty.
The fender of my bike is rusting.
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