| chalk (tʃɔːk) |
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| —n |
| 1. | a soft fine-grained white sedimentary rock consisting of nearly pure calcium carbonate, containing minute fossil fragments of marine organisms, usually without a cementing material |
| 2. | a piece of chalk or a substance like chalk, often coloured, used for writing and drawing on a blackboard |
| 3. | a line, mark, etc made with chalk |
| 4. | billiards, snooker a small cube of prepared chalk or similar substance for rubbing the tip of a cue |
| 5. | (Brit) a score, tally, or record |
| 6. | informal as alike as chalk and cheese, as different as chalk and cheese totally different in essentials |
| 7. | informal (Brit) by a long chalk by far |
| 8. | can't tell chalk from cheese, doesn't know chalk from cheese to be unable to judge or appreciate important differences |
| 9. | informal (Brit) not by a long chalk by no means; not possibly |
| 10. | (modifier) made of chalk |
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| —vb |
| 11. | to draw or mark (something) with chalk |
| 12. | (tr) to mark, rub, or whiten with or as if with chalk |
| 13. | (intr) (of paint) to become chalky; powder |
| 14. | (tr) to spread chalk on (land) as a fertilizer |
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| [Old English cealc, from Latin calx limestone, from Greek khalix pebble] |
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| 'chalklike |
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| —adj |
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| 'chalky |
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| —adj |
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| 'chalkiness |
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| —n |