Translation guide
The # symbol, used in social media, phone menus, and computing. Japanese uses different words depending on context.
The # symbol used to tag topics on social media platforms like Twitter or Instagram.
The most common term for a hashtag on social media. Used as a noun.
このハッシュタグをつけて投稿してください。
Please post with this hashtag.
Literally 'sharp', used for the # symbol itself, but not specifically for hashtags. Can be used in contexts like 'press the sharp key'.
シャープを押してください。
Please press the sharp key.
The # key on a telephone keypad, often used to confirm input or access menus.
The standard term for the # key on a phone. Often used in automated voice prompts.
シャープを押して終了してください。
Press the sharp key to finish.
Literally 'well frame', an older term for the # symbol based on its shape. Rarely used in modern phone contexts.
The # character used in programming languages, URLs, or technical contexts.
Commonly used in technical contexts, like 'hash' in programming. Also used in 'hash mark'.
URLのハッシュ以降はフラグメント識別子です。
The part after the hash in the URL is the fragment identifier.
Use ハッシュタグ for social media tags. Use シャープ for the # key on a phone or when referring to the symbol itself in non-social media contexts.
Do not translate 'hash sign' directly as ハッシュサイン. It is not natural Japanese. Use the context-appropriate term instead.
Press the hash mark.
Literally 'number symbol', a formal term for the # sign. Used in technical documentation.
番号記号（#）は、数字の前につける記号です。
The number sign (#) is a symbol placed before numbers.