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 dark image projected onto a surface where light (or other radiation) is blocked by the shade of an object.
A small degree; a shade.
An influence, especially a pervasive or a negative one.
Relative darkness, especially as caused by the interruption of light; gloom; obscurity.
That which looms as though a shadow.
A area protected by an obstacle (likened to an object blocking out sunlight).
One who secretly or furtively follows another.
An inseparable companion.
A drop shadow effect applied to lettering in word processors etc.
A spirit; a ghost; a shade.
An unconscious aspect of the personality.
A trainee, assigned to work with an experienced officer.
An imperfect and faint representation.
To accompany (a professional) during the working day, so as to learn about an occupation one intends to take up.
To make (an identifier, usually a variable) inaccessible by declaring another of the same name within the scope of the first.
To hide; to conceal.
To represent faintly and imperfectly.
To shade, cloud, or darken.
To block light or radio transmission from.
To secretly or discreetly track or follow another, to keep under surveillance.
To apply the shadowing process to (the contents of ROM).
Unofficial, informal, unauthorized, but acting as though it were.
Having power or influence, but not widely known or recognized.
Part of, or related to, the opposition in government.
Acting in a leadership role before being formally recognized.