SYMBOLDEX Symbols · Emoji · Unicode

SYMBOL

_ Fullwidth Low Line

_

Unicode information

NameFullwidth Low Line
Unicode nameFULLWIDTH LOW LINE
Code pointU+FF3F
HTML decimal_
HTML hex_
CSS\ff3f
JavaScript\uFF3F
CategoryPunctuation
Unicode17.0

Meaning of _ Fullwidth Low Line

The _ character is listed as Fullwidth Low Line in SymbolDex. Its technical Unicode name is FULLWIDTH LOW LINE. It is a Unicode punctuation mark used to structure text, separate elements or express a specific typographic function.

Common uses

  • Punctuation and text composition.
  • Editing, quotations and documentation.
  • Copy a specific typographic variant that is not available on the keyboard.

How to type _ on Windows, Mac and mobile

Windows

The universal method is to use Copy on this page and paste _. On Windows 10/11 you can press Win + . and browse the Symbols section, or open Character Map (charmap) to locate characters supported by your fonts.

Mac

Press Control + Command + Space to open Character Viewer, search for Fullwidth Low Line, then double-click it to insert the character.

Microsoft Word

Type FF3F without U+, then immediately press Alt + X. Word converts the code into _. You can also use Insert → Symbol.

Google Docs

Open Insert → Special characters and search by name, or paste _ directly. For emoji, you can also use your operating system emoji picker.

iPhone / iPad

iOS does not provide a direct Unicode-code entry method for every symbol. Copy _ from SymbolDex or check long-press variants on related keys. For frequent use, create a shortcut under Settings → General → Keyboard → Text Replacement.

Android

Availability varies by Android keyboard. In Gboard, browse the symbols panel and long-press related keys for variants. If it is not available, copy _ from SymbolDex and paste it where needed.

Linux

In many Linux apps using GTK/IBus, press Ctrl + Shift + U, type ff3f, then confirm with Enter or Space. If your app does not support this method, copy and paste _.

Web and programming codes

Copy the representation you need for HTML, CSS, JavaScript or Python. For emoji sequences, SymbolDex includes every code point in the correct order.

HTML decimal_
HTML hex_
CSS content\ff3f
JavaScript\uFF3F
Python\uFF3F
Unicode text_

Usage examples

_ — Fullwidth Low Line
Unicode: U+FF3F
HTML: _

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