Jisho

×
Noun
1. yotsugana; the four kana (ji, di, zu, du)Linguistics, じ,ぢ,ず,づ
Wikipedia definition
2. YotsuganaYotsugana refers to the four kana ジ, ヂ, ズ, ヅ of the Japanese script. While they used to represent four distinct phonemes, currently they are either one, two, three, or four distinct phonemes depending on dialect. In the current dialect of Tokyo, it is two phonemes as represented in Hepburn romanization.
Read “Yotsugana” on English Wikipedia
Read “四つ仮名” on Japanese Wikipedia
Read “Yotsugana” on DBpedia

Discussions

to talk about this word.