層雲 そううん Meanings Noun stratus Kanji 層 layer. Read as ソウ. 雲 cloud. Read as ウン. Words containing 層雲 高層雲 (こうそううん) altostratus clouds 乱層雲 (らんそううん) nimbostratus 上層雲 (じょうそううん) high-level clouds And 3 more. Jinuma: Japanese Dictionary · Word lists