Dictionary definition · cloud
noun
- any collection of particles (e.g., smoke or dust) or gases that is visible
- a visible mass of water or ice particles suspended at a considerable altitude
- out of touch with reality"his head was in the clouds"
- a cause of worry or gloom or trouble"the only cloud on the horizon was the possibility of dissent by the French"
- suspicion affecting your reputation"after that mistake he was under a cloud"
- a group of many things in the air or on the ground"a swarm of insects obscured the light"
verb
- make overcast or cloudy"Fall weather often overcasts our beaches"
- make less visible or unclear"The stars are obscured by the clouds"
- billow up in the form of a cloud"The smoke clouded above the houses"
- make gloomy or depressed"Their faces were clouded with sadness"
- place under suspicion or cast doubt upon"sully someone's reputation"
- make less clear"the stroke clouded memories of her youth"
Source: Open English WordNet (CC BY 4.0).