rapidity in moving, going, traveling, proceeding, or performing; swiftness; celerity: the speed of light; the speed of sound.
relative rapidity in moving, going, etc.; rate of motion or progress: full speed ahead.
full, maximum, or optimum rate of motion: The car gets to speed in just nine seconds.
Automotive. a transmission gear ratio.
Slang. a stimulating drug, as caffeine, ephedrine, or especially methamphetamine or amphetamine.
speed | Define speed at Dictionary.com
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In everyday use and in kinematics, the speed of an object is the magnitude of its
velocity ); it is thus a scalar quantity. The average ...
Speed definition, rapidity in moving, going, traveling, proceeding, or performing;
swiftness; celerity: the speed of light; the speed of sound. See more.
Define speed: the rate at which someone or something moves or travels — speed
in a sentence.
Speed can be a noun or verb. As a noun, it's an indicator of pace, as in the speed
of a car. As a noun, it's also a drug that keeps you awake, very awake.
How fast something is moving. Measured as distance traveled per unit of time.
Example: The speed of these cars is over 150 kilometers per hour (150 km/h).
A sign shows this cars speed. Licensed from iStockPhoto. noun. Speed is a way
of measuring how quickly something is moving or being done, or something ...
the rate at which someone or something moves or operates ... Meaning,
pronunciation, example sentences, and more from Oxford Dictionaries.
A definition of speed is given with crystal clear explanations and examples.