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?, in hiragana, or ? in katakana, is one of the Japanese kana, each of which represent one mora. The hiragana is written in one stroke; the katakana in two. Both represent the sound  . The Ainu language uses a small katakana ? to represent a final r sound after an u sound ( ur).
The hiragana for ru (?) is made with one stroke, and its katakana form (?) is made with two.
? (hiragana) begins with a vertical stroke to the right, followed by a slightly longer, angular stroke going down and to the left. Finally, a curve and loop are added to the bottom that somewhat resembles the hiragana no (?). The character as a whole is visually similar to the hiragana for ro (?).
? (katakana) is made by first making a curved stroke going down and to the left, and is followed by a stroke that first goes straight down, and then a curved line going up and to the right.
|Unicode name||HIRAGANA LETTER RU||KATAKANA LETTER RU||HALFWIDTH KATAKANA LETTER RU||KATAKANA LETTER SMALL RU|
|UTF-8||227 130 139||E3 82 8B||227 131 171||E3 83 AB||239 190 153||EF BE 99||227 135 189||E3 87 BD|
|Numeric character reference||る||る||ル||ル||ﾙ||ﾙ||ㇽ||ㇽ|
|Shift JIS||130 233||82 E9||131 139||83 8B||217||D9|