What ⩻ means
⩻ is the less-than with question mark above. Unicode classifies it as a mathematical symbol and files it in the Supplemental Mathematical Operators block; this site shelves it under Maths.
Its appearance depends on the font and text styling.
How it is encoded
⩻ is a single code point, U+2A7B. In HTML that is ⩻, and in CSS \2A7B.
Don't confuse it with
4⩼⪁⪃⪋
Greater-Than With Question Mark Above
shares “above”, “mark”, “question”, “than”
Less-Than Or Slanted Equal To With Dot Above
shares “above”, “less”, “than”
Less-Than Or Slanted Equal To With Dot Above Right
shares “above”, “less”, “than”
Less-Than Above Double-Line Equal Above Greater-Than
shares “above”, “less”, “than”
Questions 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 2A7B, 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 “less-than with question mark above”.
Linux
Ctrl+Shift+UType 2a7b, then Enter or Space.
HTML
⩻CSS
\2A7BLaTeX with unicode-math
A 2018 TeX Live unicode-math map assigns \ltquest to this sign; check your installed package and math font.
Codes and encoding1 code points
HTML decimal
⩻
HTML hex
⩻
CSS content
content: "\2A7B";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E2%A9%BB
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.