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腦

cjk unified ideograph-8166

Brain

13159/20992

腦 means “brain” in Chinese. In longer words, nearby characters can broaden the meaning beyond the organ. Its simplified Chinese form is 脑.

Text symbol

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

1

Why 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
Windows (Word)
⎇Alt+XType 8166, then AltX to get 腦.
Windows
⊞Win+Rrun charmap for the full table, or use the emoji picker's Ω symbols tab (Win .).
macOS
⌃Control+⌘Command+␣SpaceOpen the character viewer and search “cjk unified ideograph-8166”.
Linux
⎈Ctrl+⇧Shift+UType 8166, then Enter or Space.
HTML
腦
CSS
\8166
Codes and encoding1 code points
HTML decimal
腦
HTML hex
腦
CSS content
content: "\8166";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E8%85%A6
1
On screen
1
Code points
1
JS .length
3
UTF-8 bytes

A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.

Families this belongs to

2

Chinese characters99,354 symbols

Chinese, Japanese & Korean121,370 symbols