What 𑨿 means
It marks the start of a passage.
A transliteration writes Tibetan with another script. This mark belongs to page structure, not to the words.
The convention predates the script
Related openers appear in 675 CE Sanskrit inscriptions and a Tibetan manuscript from before the ninth century. That manuscript's mark also divides leaves and sections. Zanabazar developed the script in the late 17th century for Mongolian, Tibetan, and Sanskrit.
Don't confuse it with
2Questions 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 11A3F, 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 “zanabazar square initial head mark”.
Linux
Ctrl+Shift+UType 11a3f, then Enter or Space.
HTML
𑨿CSS
\11A3FBoxed glyph
If it shows as a box, choose a font with Zanabazar Square coverage.
Codes and encoding1 code points
HTML decimal
𑨿
HTML hex
𑨿
CSS content
content: "\11A3F";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%F0%91%A8%BF
1
On screen
1
Code points
2
JS .length
4
UTF-8 bytes
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.