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- Dictionaryspeed/spiːd/
noun
- 1. the rate at which someone or something moves or operates or is able to move or operate: "we turned on to the runway and began to gather speed" Similar
- 2. each of the possible gear ratios of a bicycle or motor vehicle.
verb
- 1. move quickly: "I got into the car and home we sped" Similar Opposite
- 2. make prosperous or successful: archaic "may God speed you"
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Speed is measured as the ratio between the distance and time and the SI unit of speed is m/s. It is the change in the position of an object with respect to time. There are four types of speed: uniform speed, variable speed, average speed, and instantaneous speed.
SPEED definition: 1. how fast something moves: 2. very fast movement: 3. how fast something happens: . Learn more.
the rate at which something moves, is done, or acts. physics a scalar measure of the rate of movement of a body expressed either as the distance travelled divided by the time taken ( average speed ) or the rate of change of position with respect to time at a particular point ( instantaneous speed ).
1. a. : rate of motion: such as. (1) : velocity sense 1. (2) : the magnitude of a velocity irrespective of direction. b. : the act or state of moving swiftly : swiftness. c. : impetus. 2. : swiftness or rate of performance or action : velocity sense 3a. 3. a. : the sensitivity of a photographic film, plate, or paper expressed numerically. b.
Definitions of speed. noun. a rate (usually rapid) at which something happens. “the project advanced with gratifying speed ” synonyms: fastness, swiftness. see more. noun. distance travelled per unit time. synonyms: velocity. see more. noun. changing location rapidly. synonyms: hurrying, speeding. see more. verb. move fast.
2 days ago · speed (originally prosperity or success) may apply to human or nonhuman activity and emphasizes the rate in time at which something travels or operates: the speed of light, of a lens, of an automobile, of thought. velocity, a more learned or technical term, is sometimes interchangeable with speed: the velocity of light; it is commonly used to ...
Psychology. See also. References. Speed. In everyday use and in kinematics, the speed (commonly referred to as v) of an object is the magnitude of the change of its position over time or the magnitude of the change of its position per unit of time; it is thus a scalar quantity. [1] .
how fast something moves or happens: high/ low speed. He was travelling at a speed of 90 mph. Fewer examples. We were driving at full speed. He's been working to improve his speed. There's always a trade-off between speed and quality. They rounded the corner at high speed. We work at the same speed.
Speed definition: rapidity in moving, going, traveling, proceeding, or performing; swiftness; celerity. See examples of SPEED used in a sentence.
[uncountable] the quality of being quick or rapid. The Kenyan runner put on a sudden burst of speed over the last 50 metres. She was overtaken by the speed of events (= things happened more quickly than she expected). at speed (formal) A car flashed past them at speed (= fast).
