Ideographic Number Zero

Ideographic Number Zero is a punctuation mark used in Chinese, Japanese, or Korean text, following typographic conventions distinct from Western punctuation — often full-width in character spacing to match CJK ideographs.

Unicode block: CJK Symbols and Punctuation (U+3000–U+303F). This block provides punctuation marks specific to Chinese, Japanese, and Korean (CJK) typography, which historically developed distinct conventions from Western punctuation for spacing, quotation, and emphasis.

At Unicode code point U+3007 (decimal 12295), Ideographic Number Zero is the 8th of 64 characters cataloged in this category on How To Type Any Symbol. In terms of typing methods, like most characters outside the 0–255 legacy codepage range, it has no dedicated Alt-code or single-key shortcut on Windows or Mac, so copy-paste is the standard, universal method for typing it. Regardless of platform, clicking the copy button above places the exact character on your clipboard, ready to paste into any application that accepts Unicode text.

💡 Good to know: When localizing content into Chinese, Japanese, or Korean, use the correct native punctuation from this block rather than Western equivalents for a professional, native-reading result.