Meaning & use
regrind
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Meanings
verbtransitive
To grind something again, especially to sharpen a tool or to reduce material to smaller pieces.
Grammar: Takes an object: regrind the blade. The past tense is 'reground'.
Patterns
- regrind something
- regrind a tool
The machinist had to regrind the cutting tool to restore its sharpness.
You can regrind the coffee beans for a finer brew.
The recycling plant regrinds plastic waste into small pellets.
noununcountabletechnical
Material that has been ground again, often used in manufacturing or recycling.
Grammar: Uncountable; used in technical contexts.
Patterns
- use regrind
- add regrind
The factory mixes regrind with virgin plastic to reduce costs.
Regrind from the milling process is collected and reused.
Word forms
| third person singular | regrinds |
|---|---|
| past tense | reground |
| past participle | reground |
| -ing form | regrinding |
Common combinations
- regrind a tool
- The technician will regrind the drill bit.
- regrind coffee
- If the coffee is too coarse, you can regrind it.
- regrind plastic
- The company regrinds plastic scraps for reuse.
Synonyms and how they differ
- resharpen
- Resharpen specifically means to make a tool sharp again, while regrind can also mean to grind material into smaller pieces.
- pulverize
- Pulverize means to crush into powder or dust; regrind is more specific to grinding again, often for recycling or sharpening.
Word family
Commonly confused: regrind or rewind?
regrind vs rewind
Rewind means to wind something back, like a tape; regrind means to grind again.
Practice
What is the past tense of 'regrind'?
Choose one answer.
The past tense of 'regrind' is 'reground', following the pattern of 'grind' → 'ground'. 'Regrinded' is incorrect. 'Regrind' is the base form, and 'regrinding' is the present participle.
Make it your own
Write a sentence using “regrind”, then check it and compare it with the examples above.