Open English Wordnet
Nouns
(n)cloudany collection of particles (e.g., smoke or dust) or gases that is visible (n)clouda visible mass of water or ice particles suspended at a considerable altitude (n)cloudout of touch with reality“his head was in the clouds” (n)clouda cause of worry or gloom or trouble“the only cloud on the horizon was the possibility of dissent by the French” (n)cloudsuspicion affecting your reputation“after that mistake he was under a cloud” (n)swarm, clouda group of many things in the air or on the ground“a swarm of insects obscured the light”,
“clouds of blossoms”,
“it discharged a cloud of spores” Verbs
(v)overcast, cloudmake overcast or cloudy“Fall weather often overcasts our beaches” (v)cloudbillow up in the form of a cloud“The smoke clouded above the houses” (v)cloudmake gloomy or depressed“Their faces were clouded with sadness” (v)cloudmake less clear“the stroke clouded memories of her youth” (v)cloudmake milky or dull“The chemical clouded the liquid to which it was added”