| 1. | a soft, white, powdery limestone consisting chiefly of fossil shells of foraminifers. |
| 2. | a prepared piece of chalk or chalklike substance for marking, as a blackboard crayon. |
| 3. | a mark made with chalk. |
| 4. | a score or tally. |
| 5. | to mark or write with chalk. |
| 6. | to rub over or whiten with chalk. |
| 7. | to treat or mix with chalk: to chalk a billiard cue. |
| 8. | to make pale; blanch: Terror chalked her face. |
| 9. | (of paint) to powder from weathering. |
| 10. | of, made of, or drawn with chalk. |
| 11. | chalk up,
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