What 響 means
They are different code points for the same written character.
Unicode maps FACA (響) to 97FF (響). In a message, read 響 as 響; the surrounding sentence tells you which word the sender intended.
Why was FACA added?
It preserves a distinction from a legacy character set.
The recorded source for 響 is KPS 10721-2000, a North Korean character-encoding standard—a system for assigning numbers to characters. Unihan, Unicode's database for Han characters, lists its source position as KP1-866A.
This compatibility code point lets older data pass through Unicode and back without losing which source character it used. Its mapped character, 響, is associated with sound or echo; FACA preserves the legacy encoding distinction, not a second word.
Why does FACA show as a box?
The font used to display it may lack this glyph.
In the font used to display it, 響 may have a different stroke shape from 響 or appear as a box if the font or its fallback lacks coverage. The box marks missing font coverage; it does not by itself tell you which code point is stored.
Technical and archival; in ordinary prose, FACA points to a preserved encoding distinction, not a change in the writer's tone.
Normalization may turn FACA into 97FF; visible shape alone cannot preserve the exact source code point.
Who writes 響
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Don't confuse it with
1Questions people ask
3Why does normalization change FACA to 97FF?
Normalization puts equivalent text into a standard form. Because FACA maps to U97FF, normalized text can replace 響 with 響.
Why does 響 show as a box?
Missing font coverage. The font or its fallback cannot draw this character; a font that includes this code point can display it.
Should I use FACA or 97FF in new text?
Usually, use 響 for ordinary new text. Keep 響 when data must preserve the exact character from its old encoding or survive a round trip through that format.
How to type or find 響
- Search it as
- FACA · U+FACA · 97FF · U+97FF · 響 · KPS 10721-2000 · KPS10721 · Unicode normalization
- Shows up in
- Anything that takes text · its shape is whatever your font draws
響\FACACodes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.

