Definition of "Cloud" :
noun: a group of many things in the air or on the ground
"Clouds of blossoms."
noun: a visible mass of water or ice particles suspended at a considerable altitude
noun: any collection of particles (e.g., smoke or dust) or gases that is visible
noun: out of touch with reality
"His head was in the clouds."
noun: suspicion affecting your reputation
"After that mistake he was under a cloud."
noun: a cause of worry or gloom or trouble
"The only cloud on the horizon was the possibility of dissent by the French."
verb: make milky or dull
"The chemical clouded the liquid to which it was added."
verb: colour with streaks or blotches of different shades
verb: make less clear
"The stroke clouded memories of her youth."
verb: place under suspicion or cast doubt upon
verb: make gloomy or depressed
"Their faces were clouded with sadness."
verb: billow up in the form of a cloud
"The smoke clouded above the houses."
verb: make less visible or unclear
"The stars are obscured by the clouds."
verb: make overcast or cloudy