n. a 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"

n. a visible mass of water or ice particles suspended at a considerable altitude

n. suspicion affecting your reputation; "after that mistake he was under a cloud"

n. [any collection of particles (e.g. smoke or dust) or gases that is visible in the air]

v. colour with streaks or blotches of different shades

v. place under suspicion or cast doubt upon; "sully someone's reputation"

v. make less visible or unclear; "The stars are obscured by the clouds"; "the big elm tree obscures our view of the valley"

v. make milky or dull; "The chemical clouded the liquid to which it was added"