· any collection of particles (e.g., smoke or dust) or gases that is visible

Hypernym(s): physical_phenomenon

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

Hypernym(s): atmospheric_phenomenon

· out of touch with reality; "his head was in the clouds"

Hypernym(s): unreality, irreality

· a cause of worry or gloom or trouble; "the only cloud on the horizon was the possibility of dissent by the French"

Hypernym(s): gloom, gloominess, glumness

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

Hypernym(s): suspicion

· 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"

Synonym(s): swarm

Hypernym(s): group, grouping

· make overcast or cloudy; "Fall weather often overcasts our beaches"

Synonym(s): overcast

Hypernym(s): darken

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

Synonym(s): obscure, befog, becloud, obnubilate, haze_over, fog, mist

Hypernym(s): hide, conceal

· billow up in the form of a cloud; "The smoke clouded above the houses"

Hypernym(s): billow, wallow

· make gloomy or depressed; "Their faces were clouded with sadness"

Hypernym(s): affect, impress, move, strike

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

Synonym(s): defile, sully, corrupt, taint

Hypernym(s): mar, impair, spoil, deflower, vitiate

· make less clear; "the stroke clouded memories of her youth"

Hypernym(s): change, alter, modify

· colour with streaks or blotches of different shades

Synonym(s): mottle, dapple

Hypernym(s): spot

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

Hypernym(s): dull