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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 definition: rapidity in moving, going, traveling, proceeding, or performing; swiftness; celerity. See examples of SPEED used in a sentence.
speed noun (RATE OF MOVEMENT) Add to word list. B1 [ C or U ] how fast something moves: He was travelling at a speed of 90 mph. The car has a top speed of 155 miles per hour. You should lower / reduce your speed as you approach a junction. On a clear, straight road you can gather / pick up speed.
The meaning of SPEED is rate of motion. How to use speed in a sentence. Synonym Discussion of Speed.
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).
Speed most often describes acceleration or a high rate of motion. When something picks up too much speed, it can run off course, like a kid on a bike zooming uncontrollably down a steep hill. Speed can be a noun or verb. As a noun, it's an indicator of pace, as in the speed of a car.
1. rapidity in moving, traveling, performing, etc.; swiftness. 2. relative rate of motion or progress: the speed of light. 3. a gear ratio in a motor vehicle or bicycle. 4. a. the sensitivity of a photographic film or paper to light. b. the length of time a shutter is opened to expose film.
Speed definition: rapidity in moving, going, traveling, proceeding, or performing; swiftness; celerity. See examples of SPEED used in a sentence.
speed meaning: 1. how fast something moves or happens: 2. very fast movement: 3. to move somewhere or happen…. Learn more.
Speed is the magnitude of velocity (a vector), which indicates additionally the direction of motion. Speed has the dimensions of distance divided by time. The SI unit of speed is the metre per second (m/s), but the most common unit of speed in everyday usage is the kilometre per hour (km/h) or, in the US and the UK, miles per hour (mph).
Definition of speed noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
