Pronunciation: (kloud),[key] —n. 1. a visible collection of particles of water or ice suspended in the air, usually at an elevation above the earth's surface.
2. any similar mass, esp. of smoke or dust.
3. a dim or obscure area in something otherwise clear or transparent.
4. a patch or spot differing in color from the surrounding surface.
5. anything that obscures or darkens something, or causes gloom, trouble, suspicion, disgrace, etc.
6. a great number of insects, birds, etc., flying together: a cloud of locusts obscuring the sun. 7. in the clouds, a. in a condition of absent-mindedness; lost in reverie.
b. impractical: Their schemes are usually up in the clouds. 8. on a cloud,Informal.exceedingly happy; in high spirits: On the night of the prom the seniors were on a cloud. 9. under a cloud, in disgrace; under suspicion: After going bankrupt he left town under a cloud.
—v.t. 1. to overspread or cover with, or as with, a cloud or clouds: The smoke from the fire clouded the sun from view. 2. to overshadow; obscure; darken: The hardships of war cloud his childhood memories. 3. to make gloomy.
4. (of distress, anxiety, etc.) to reveal itself in (a part of one's face): Worry clouded his brow. 5. to make obscure or indistinct; confuse: Don't cloud the issue with unnecessary details. 6. to place under suspicion, disgrace, etc.
7. to variegate with patches of another color.
—v.i. 1. to grow cloudy; become clouded.
2. (of a part of one's face) to reveal one's distress, anxiety, etc.: His brow clouded with anger.