noun, verb, chinned, chin⋅ning.| 1. | the lower extremity of the face, below the mouth. |
| 2. | the prominence of the lower jaw. |
| 3. | Informal. chin-up. |
| 4. | Gymnastics.
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| 5. | to raise or hold to the chin, as a violin. |
| 6. | Archaic. to talk to; chatter with. |
| 7. | Gymnastics. to chin oneself. |
| 8. | Slang. to talk; chatter: We sat up all night chinning about our college days. |
| 9. | keep one's chin up, to maintain a cheerful disposition in spite of difficulties, disappointments, etc. Also, chin up. |
| 10. | take it on the chin, Informal.
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chin (chĭn)
n.
The prominence formed by the anterior projection of the lower jaw.