American Dictionary

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Definition speed in American English

speed noun

noun
/spid/
1

the rate at which someone or something moves

Example

The device measures the speed and direction of the wind.

Example

The new model has a top speed of 125 miles per hour.

Example

The hurricane has picked up speed and turned toward the coast.

Synonyms and related words
1.1

the rate at which something happens

Example

They were working with incredible speed.

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1.2

the rate at which a machine works

Example

a printing speed of 6 pages per minute

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2

movement that is very fast

Example

The main advantage of this bike is its speed.

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3

a gear

Example

a car with a 5-speed transmission

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4

the time that it takes for a camera's shutter to open and close to allow light in

Example

shutter speed

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4.1

a measurement of how quickly a film reacts to the light that comes into a camera

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5

an illegal drug that makes people feel as if they have a lot of energy

Synonyms and related words
Definition speed in American English