What 腦 means
It means “brain”; the surrounding word picks the sense.
In longer Chinese words, 腦 can also mean the head, thinking ability, a central part, or a brain-like substance.
An Eastern Han character dictionary, 說文解字, records the older form 匘 with the gloss “marrow inside the head.”
The left side of 腦 is the body or flesh component, not 月, the character for “moon”; some fonts make the two shapes look alike.
Neutral in written Chinese; the surrounding word sets the tone.
A lone 腦 does not mean “smart” by itself; read the surrounding word.
Part of the collection
Who writes 腦
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Questions people ask
1Why does 腦 show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
How to type or find 腦
- Also called
- 脑
- Search it as
- head · mind · nao · nǎo · brain character · 腦
- Shows up in
- Anything that takes text · its shape is whatever your font draws
腦\8166Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.





