Yotsugana (四つ仮名, literally "four kana") are a set of four specific kana, じ, ぢ, ず, づ (in the Nihon-shiki romanization system: zi, di, zu, du), used in the Japanese writing system. They historically represented four distinct voiced morae (syllables) in the Japanese language. However, most dialects, such as Standard Japanese-speakers, have undergone mergers and now pronounce two sounds.
Modern sound usage in various dialects
Most of the far northern dialects (Tōhoku dialects and Hokkaidō) and far southern dialects (notably Okinawan Japanese) and the Ryukyuan languages (the other Japonic languages) have also mostly merged the four sounds to one sound. However, a few dialects, mainly around Shikoku and Kyushu in the southwest, still distinguish three or even all four sounds.
In the current Tokyo dialect, the base of the modern standard language, as well as in the widely spoken Kansai dialect, only two sounds...
ロミンちゃん
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