noun, verb, nut⋅ted, nut⋅ting.| 1. | a dry fruit consisting of an edible kernel or meat enclosed in a woody or leathery shell. |
| 2. | the kernel itself. |
| 3. | Botany. a hard, indehiscent, one-seeded fruit, as the chestnut or the acorn. |
| 4. | any of various devices or ornaments resembling a nut. |
| 5. | a block, usually of metal and generally square or hexagonal, perforated with a threaded hole so that it can be screwed down on a bolt to hold together objects through which the bolt passes. |
| 6. | Slang. the head. |
| 7. | Slang.
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| 8. | Slang.
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| 9. | Slang: Vulgar. a testis. |
| 10. | Informal.
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| 11. | Music. (in instruments of the violin family)
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| 12. | Printing. en (def. 2). |
| 13. | to seek for or gather nuts: to go nutting in late autumn. |
| 14. | from soup to nuts. soup (def. 7). |
| 15. | hard nut to crack,
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| 16. | off one's nut, Slang.
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| National Union of Teachers. |
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In addition to the idioms beginning with nuts, also see drive someone crazy (nuts); from soup to nuts; hard nut to crack.