What ⎦ means
It closes the bracket at its lower-right end.
These pieces came from older font standards and past mathematical processing. Typesetting stacks top, middle and bottom parts to enclose several lines without making bracket strokes too heavy by enlarging one character.
Don't confuse it with
1Combination ideas
1The intended three-row construction of a tall right square bracket.
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 23A6, 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 “right square bracket lower corner”.
Linux
Ctrl+Shift+UType 23a6, then Enter or Space.
HTML
⎦CSS
\23A6Linux hex input
With Unicode hex input in Linux, press Ctrl+Shift+U, enter 23a6, then Enter; tested with GNOME 47–48 and KDE 6.2 in 2025.
Codes and encoding1 code points
HTML decimal
⎦
HTML hex
⎦
CSS content
content: "\23A6";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E2%8E%A6
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.