云的英文是cloud。例如，The plane was flying in cloud most of the way.飞机一路大多在云层里飞行。
“云”的几种英文表达方式
[动]
1.[书]（说）say:人云亦云
[名]
1.(云彩) cloud:浮云
乌云 black [dark] clouds;
天空中飘浮着一朵白云。A white cloud floated in the sky.
云已经消散。The clouds have been dissipated.
2.(云南) short for Yunnan Province
3.（姓氏）a surname:
云敞 Yun Chang
cloud基本含义
英 [klaʊd] 美 [klaʊd]
n.云;云朵;云状物(如尘雾、烟雾、一群飞行的昆虫);阴影;忧郁;焦虑;令人忧虑的事
v.使难以理解;使记不清楚;使模糊;显得阴沉(或恐惧、愤怒等);看起来忧愁(或害怕、愤怒等);(尤指用无关的话题来)混淆，搅混(问题)
第三人称单数：clouds
复数：clouds
现在分词：clouding
过去式：clouded
过去分词：clouded
