雲泥 うんでい Meanings Noun great difference Kanji 雲 cloud. Read as ウン. 泥 mud. Read as デイ. Words containing 雲泥 雲泥の差 (うんでいのさ) wide difference 雲泥万里 (うんでいばんり) being poles apart 天地雲泥 (てんちうんでい) extreme difference Jinuma: Japanese Dictionary · Word lists