The handakuten, which indicates that a kana with an initial of h- should be pronounced with p- (i.e. ha with a handakuten is pronounced as pa). It is also sometimes used with k- kana to indicate ng- (a phoneme that is usually an allophone of /g/).

a surname

a surname

徒手: being empty-handed / 斗酒: a large volume of sake

The hiragana syllable てゅ (tyu). Its equivalent in katakana is テュ (tyu).

The hiragana syllable でゅ (dyu). Its equivalent in katakana is デュ (dyu).

The hiragana syllable にゅ (nyu). Its equivalent in katakana is ニュ (nyu).

綬: cordon, ribbon

The hiragana syllable じゅ (ju). Its equivalent in katakana is ジュ (ju).

The hiragana syllable しゅ (shu). Its equivalent in katakana is シュ (shu).