What ⛶ means
It marks an intersection in the map-symbol tradition it came from.
⛶ was carried into Unicode from ARIB STD-B24, a Japanese digital-broadcasting standard that included map symbols. The Unicode naming discussion explicitly paired it with “intersection,” not with a generic square or decorative mark.
Why does ⛶ also mean fullscreen?
Designers reuse it as a control for expanding a frame. Its four open corners suggest enlarging a bounded area, so interface libraries use it for corner, bounds, layout, or fullscreen controls. That is a later design convention, separate from its documented map meaning.
In a message, the surrounding words decide whether “expand” or a map meaning fits; the character alone does not signal an interface action.
Technical and diagrammatic; at home in interfaces, unusual as a standalone conversational symbol.
In chat, ⛶ does not reliably mean “fullscreen” or “intersection.” Add words if the distinction matters.
Don't confuse it with
2Questions people ask
1Why does ⛶ look different in different fonts?
Because ⛶ is a text character: each font supplies its own drawing rather than using standardized emoji artwork. A font without the character may show a missing-glyph box or another fallback.
How to type ⛶
⛶\26F6Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.