What 訫 means
Yes: it is an alternate written form of 信.
The 說文解字, an early Chinese dictionary, records an ancient form of 信; later Chinese and Japanese character references link 訫 to it.
An uncommon old-style form; alone, it does not reliably signal tone.
What it means when someone sends it to you
3 readings訫 sent alone
It points to 信, but alone does not settle the intended sense.
Near trust or truth words
Nearby words point toward sincerity, truth, or trust.
In a Japanese personal name
Use the name-holder's stated reading; 訫 alone is not enough.
Questions people ask
1Why does 訫 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 訫
Windows (Word)
Alt+XType 8A2B, then Alt+X to get 訫.
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-8a2b”.
Linux
Ctrl+Shift+UType 8a2b, then Enter or Space.
HTML
訫CSS
\8A2BTraditional Chinese input
Enter xin in Pinyin and select 訫 from candidates; Cangjie input uses YRP.
Codes and encoding1 code points
HTML decimal
訫
HTML hex
訫
CSS content
content: "\8A2B";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E8%A8%AB
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.