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rust
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- pronunciation:
- ruhst
- parts of speech:
- noun, verb
- features:
- Word Explorer
| part of speech: |
noun |
| definition 1: |
an orange or reddish brown coating that forms on metal that has been exposed to air and water.
The old bike had been outside in the rain for months and there was rust all over the metal.
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| definition 2: |
a plant disease that causes reddish brown or black spots on leaves and stems. It is caused by a fungus.
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| related words: |
mold, tarnish |
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| part of speech: |
verb |
| inflections: |
rusts, rusting, rusted |
| definition: |
to become rusty.
The fender of my bike is rusting.The old car had been outside rusting for years.
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| related words: |
tarnish |
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