A dark spot on a lighter material or background.
Crystal methamphetamine.
A negative or foreboding aspect of something positive: see every cloud has a silver lining or every silver lining has a cloud.
The Internet, regarded as an abstract amorphous omnipresent space for processing and storage, the focus of cloud computing.
A large, loosely-knitted headscarf worn by women.
A telecom network (from their representation in engineering drawings)
Anything which makes things foggy or gloomy.
A visible mass of water droplets suspended in the air.
Anything unsubstantial.
A group or swarm, especially suspended above the ground or flying.
Any mass of dust, steam or smoke resembling such a mass.
An elliptical shape or symbol whose outline is a series of semicircles, supposed to resemble a cloud.
To make less acute or perceptive.
To make gloomy or sullen.
To become marked, darkened or variegated in this way.
To make obscure.
To become foggy or gloomy, or obscured from sight.
To overspread or hide with a cloud or clouds.
To mark with, or darken in, veins or sports; to variegate with colors.
To blacken; to sully; to stain; to tarnish (reputation or character).
Of the breath, to become cloud; to turn into mist.
A covering of fine, soft hairs; a pubescence.
A mass of filamentous hairs on the leaf of a plant.
A network of fine blood vessels between the pia mater and the cerebral cortex.