What 䦕 means
Read it as 䦕, a character for a door’s bang. Chinese dictionaries list 䦕 as another form of 閛 and gloss it as the sound of a door opening or closing.
The Unicode chart ties it to T7-347A, a slot in plane 7 of Taiwan’s CNS 11643-1992 character code. That compatibility slot lets text move into Unicode and back while retaining this source position.
Why does normalization change it?
Normalization converts it to 䦕. Unicode normalization is text cleanup that combines canonically equivalent characters, so the separate identity of 䦕 disappears.
Unicode defines 䦕 followed by U+FE00, an invisible variation selector that requests this particular glyph, to preserve the distinction through normalization; the font and app must support the sequence.
Questions people ask
1Why does 䦕 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 䦕
䦕\2F9EFCodes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.