What ㍶ means
It is lowercase “pc” set in one square cell.
This legacy East Asian typography fits short technical abbreviations into a full-width character cell. Most squared Latin abbreviations reflect Korean standards; nearby Japanese forms box Katakana, a Japanese syllabary.
Compatibility normalization drops the square and leaves lowercase “pc.”
Legacy technical notation in an East Asian square-cell style.
The square alone does not identify the “pc” expansion.
What it means when someone sends it to you
3 readingsAstronomy or star distances
“pc” means parsec, a unit for astronomical distances.
Electrical charge
The intended unit may be picocoulomb, normally written pC.
Computing text
It can mean personal computer, usually written PC.
Don't confuse it with
4Questions people ask
1Why does ㍶ 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 ㍶
Windows (Word)
Alt+XType 3376, then Alt+X to get ㍶.
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 “square pc”.
Linux
Ctrl+Shift+UType 3376, then Enter or Space.
HTML
㍶CSS
\3376Codes and encoding1 code points
HTML decimal
㍶
HTML hex
㍶
CSS content
content: "\3376";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E3%8D%B6
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.