What Ⅲ means
Their roots are in the number signs of ancient Italy. Etruscan signs are among the forms linked to Roman numerals; the Etruscans were an ancient people of central Italy, and the exact path is debated. The signs recorded quantities and spread through Roman and medieval European writing. In Ⅲ, I is the Roman sign for one, repeated three times.
What it means when someone sends it to you
3 readingsAfter “Chapter III” or “Act III”
The third division of a book or play.
After a ruler’s name + Ⅲ
The third ruler with that name.
Front matter page Ⅲ
The third front-matter page, numbered separately from the main text.
Don't confuse it with
4Questions people ask
1Why does Ⅲ 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 Ⅲ
Windows (Word)
Alt+XType 2162, then Alt+X to get Ⅲ.
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 “roman numeral three”.
Linux
Ctrl+Shift+UType 2162, then Enter or Space.
HTML
ⅢCSS
\2162Codes and encoding1 code points
HTML decimal
Ⅲ
HTML hex
Ⅲ
CSS content
content: "\2162";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E2%85%A2
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.