What ￦ means
It marks Korean won in a fullwidth text cell.
The won as a currency dates to 1888, well before this encoded fullwidth form. That date belongs to the money, not to the glyph.
Use ￦ when East Asian text layout needs its full cell; otherwise, ₩ is the ordinary won sign. Before digits, it works as the currency prefix for an amount.
Why does ￦ look like a backslash?
A backslash can be drawn with a won-shaped glyph.
In Korean keyboard and font contexts, older character sets put a won mark in the backslash position, and fonts may still show the backslash (the character used in paths and escapes) that way. Japanese systems have a related yen/backslash convention.
That can make a path separator or escape look like currency. The visible mark alone cannot identify the stored character; inspect it before editing code.
Technical and region-specific: it marks Korean won, while its width matters in East Asian text layout.
A won-shaped mark in code may be a backslash; inspect it before editing.
What it means when someone sends it to you
2 readingsDon't confuse it with
1Combination ideas
1Questions 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 ￦
￦\FFE6Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.