Hiragana Letter Small U

The Hiragana Letter Small U at U+3045 is the reduced-size hiragana form of う, used to modify nearby kana rather than to write a normal full mora on its own. It is part of the Hiragana block and is read through the combination it helps create, most often in informal, phonetic, or foreign-sound spelling. In Japanese text, ぅ commonly appears after kana such as と, ど, ふ, or ゔ-like spellings to suggest sounds that ordinary hiragana does not neatly cover. For example, とぅ may be used for “tu,” どぅ for “du,” and ふぅ can mark a long or softened “fuu” sound in dialogue, lyrics, manga, or casual writing. It is also used expressively to make a vowel feel smaller, breathier, cuter, or drawn out, especially in online messages and character speech. The key reading issue is size: とう is normally read as a standard Japanese sequence with a long “o” value in many words, while とぅ signals a special combined pronunciation.