What ＋ means
It fills a full character cell.
Japanese typography calls a full-cell form zenkaku, or fullwidth. Older East Asian encodings commonly gave basic ASCII characters (Latin letters, digits, and signs used in plain-text code) one display cell, while Chinese, Japanese, or Korean characters occupied two. Unicode preserves paired fullwidth forms such as ＋ so text can move between those systems without losing its width choice.
Japanese text layout treats plus as a math operator; in a fullwidth setting it can occupy a fixed cell among Japanese characters. Its meaning remains addition.
Will ＋ work in code?
Only if the program accepts fullwidth input.
Programs that require ASCII (the basic Latin letters, digits, and signs used in plain-text code) expect . Unicode's NFKC compatibility normalization—a text conversion that can remove width distinctions—can turn ＋ into for matching, but then the width is lost. Keep ＋ when that width matters.
In the 2010s, some online text generators presented fullwidth runs as decoration for vaporwave, a retro-internet art style; the stretched look comes from the whole run, not ＋ alone.
Neutral and typographic: the fullwidth form signals a layout choice, not a new arithmetic meaning.
In code, ＋ can look like but fail where ASCII is required.
Part of the collection
Don't confuse it with
4
Related characters
1
Combination ideas
5Questions 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.
More like this
10
How to type or find ＋
- Search it as
- zenkaku plus · fullwidth + · wide plus
- Shows up in
- Anything that takes text · its shape is whatever your font draws
＋\FF0BCodes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.