What ヌ means
It is the Japanese katakana syllable nu in a narrow form. Read it like ヌ; the width and encoding context differ, not the sound. In ordinary Japanese writing, ヌ is the standard full-width form.
The two forms are distinct characters, so changing between them can affect alignment, field limits, validation, or conversion even when the reading stays the same.
Why was half-width katakana made?
It made Japanese text fit into narrow machine cells. In 1969, the Japanese JIS C 6220 standard included a limited katakana set for single-byte computer and telecommunications systems. Narrow kana could share a fixed-width grid with Latin letters; older systems also used separate marks for voiced sounds as part of this space-saving approach.
A 1903 Tokyo Tsukiji type specimen shows that half-width and two-thirds-width kana existed before computers. As full-width kana and kanji systems spread in the 1970s, the narrow forms shifted toward receipts, banking data, address labels, and older interfaces. This character belongs to the JIS X 0201 kana set, and its full-width counterpart is ヌ.
Should I use ヌ or ヌ?
Use ヌ in ordinary Japanese; use ヌ when a field or style calls for it. As of 2026, a Japanese Ministry of Health site advises replacing half-width kana with full-width forms. The narrow form can therefore look technical, inherited, or deliberately retro without changing the reading.
A font setting that narrows ヌ does not turn it into ヌ. In fixed-pitch East Asian fonts, half-width kana takes half an em; proportional fonts and fallback rendering can change the visible spacing.
The narrow form can feel technical, inherited, or deliberately retro; its Japanese reading stays the same.
For ordinary Japanese prose, use full-width ヌ; a width-sensitive field may reject or normalize ヌ.
Part of the collection
Who writes ヌ
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What it means when someone sends it to you
2 readingsA constrained-data spelling; keep the half-width form if the receiving system requires it.
Don't confuse it with
1Questions people ask
1Can half-width kana become garbled in email?
Yes, in older ISO-2022-JP mail paths that excluded the JIS X 0201 kana set. Half-width kana could be converted or garbled there; that is an encoding problem, not a change in how ヌ is read.
How to type or find ヌ
- Search it as
- hankaku kana · halfwidth kana · half-width katakana · nu kana · halfwidth nu · kana input · F8 katakana · ヌ
- Shows up in
- Anything that takes text · its shape is whatever your font draws
ヌ\FF87Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.


