Speed definition

spēd
To move, work, or happen at a faster rate; accelerate.

His pulse speeded up.

verb
30
15
To drive at a speed exceeding a legal limit.

Was speeding on the freeway.

verb
25
15
To move rapidly, esp. more rapidly than is safe or allowed by law.
verb
15
6
Speed is a way of measuring how quickly something is moving or being done, or something moving fast.

An example of speed is a car being driven 45 miles per hour.

An example of speed is someone cleaning a room in 10 minutes.

An example of speed is how quickly a jaguar runs.

noun
10
4
To wish Godspeed to.

To speed the parting guest.

verb
8
6
Advertisement
(slang) To be under the influence of a stimulant drug.
verb
12
11
To go, move, or proceed quickly.

Sped to the rescue.

verb
12
11
To help (a project) to succeed; aid; promote.
verb
5
5
The ratio of the distance traveled by an object (regardless of its direction) to the time required to travel that distance.
3
3
Speed is a slang term for the street drug methamphetamine.

An example of speed is a drug that increases energy, heart rate and makes it very difficult to eat or sleep.

noun
2
2
Advertisement
To pass quickly.

The days sped by. The months have sped along.

verb
2
2
(archaic) To cause to succeed or prosper.
verb
2
2
Speed is defined as to help someone or something along, or move too quickly.

An example of speed is a restaurant hostess putting regular customers at the top of a table waiting list.

An example of speed is driving 80 mph in a 50 mph zone.

verb
0
0
(slang) One that suits or appeals to a person's inclinations, skills, or character.

Living in a large city is not my speed.

noun
0
0
(archaic) Prosperity; luck.
noun
0
0
Advertisement
The state of being in rapid motion; rapidity.

The river's speed made a rescue difficult.

noun
0
0
A numerical expression of the sensitivity of a photographic film, plate, or paper to light.
noun
0
0
The capacity of a lens to accumulate light at an appropriate aperture.
noun
0
0
The length of time required or permitted for a camera shutter to open and admit light.
noun
0
0
To prove successful; prosper.
verb
0
0
Advertisement
To get along in a specified manner; fare.
verb
0
0
To cause to move or proceed quickly; hasten.

No wind to speed the boat.

verb
0
0
To increase the speed or rate of; accelerate. Often used with up:

Speed up a car; sped up production.

verb
0
0
To further, promote, or expedite (a legal action, for example).
verb
0
0
(archaic) To help to succeed or prosper; aid.
verb
0
0
Advertisement
(slang) Any of various amphetamine compounds, esp. methedrine.
noun
0
0
The rate of movement or motion;
noun
0
0
The magnitude of a.
noun
0
0
The rate or rapidity of any action.

Reading speed.

noun
0
0
The sensitivity of film to light, expressed in various numerical scales.
noun
0
0
Advertisement
The widest effective aperture of a camera lens.
noun
0
0
The length of time the shutter is opened for an exposure.
noun
0
0
To get along; fare.
verb
0
0
To have fortune, good or bad.
verb
0
0
To have good fortune; prosper; succeed.
verb
0
0
Advertisement
A surname​.
pronoun
0
0
The act or state of moving rapidly; swiftness; quick motion.
noun
5
6
(archaic) Luck; success; prosperity.

To wish someone good speed.

noun
3
4
A stimulant drug, especially amphetamine or methamphetamine.
noun
2
3
Swiftness of action.

He wrote the first chapter with great speed.

noun
1
2
Advertisement
A transmission gear or set of gears in a motor vehicle.

What speed is the car in now?

noun
1
2
Of or having to do with speed.
adjective
1
2
To cause or design (a machine, etc.) to operate at a certain speed or speeds.
verb
1
2
The act of moving rapidly.

Finished the race in a burst of speed.

noun
0
1
(physics) The rate or a measure of the rate of motion, especially:
  • Distance traveled divided by the time of travel.
  • The limit of this quotient as the time of travel becomes vanishingly small; the first derivative of distance with respect to time.
  • The magnitude of a velocity.
noun
1
3
Advertisement
A gear or arrangement of gears for the drive of an engine or bicycle.

A truck with five forward speeds.

noun
1
3
(informal) One's kind or level of taste, capability, etc.
noun
1
3
To send, convey, or cause to move, go, etc. swiftly.

To speed a letter on its way.

verb
1
3
(slang) A stimulant drug, especially amphetamine or methamphetamine.
noun
0
2
up to speed
  • Fully informed; conversant:
    I'm not up to speed on these issues yet.
idiom
0
1
Advertisement
at speed
  • quickly; rapidly
idiom
0
0
speed up
  • to increase in speed; go or make go faster; accelerate
idiom
0
0
up to speed
  • working or operating at full speed, maximum efficiency, etc.
  • fully informed or having enough information
idiom
0
0

Other Word Forms

Noun

Singular:
speed
Plural:
speeds

Idioms and Phrasal Verbs

Origin of speed

  • Middle English spede from Old English spēd success, swiftness spē- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • Middle English sped (“good fortune”).

    From Wiktionary