English dictionary

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English noun: speed

1. speed (time) distance travelled per unit time


Broader (hypernym)rate

Narrower (hyponym)airspeed, angular velocity, c, escape velocity, groundspeed, hypervelocity, light speed, muzzle velocity, peculiar velocity, radial velocity, speed of light, steerageway, terminal velocity

2. speed (attribute) a rate (usually rapid) at which something happens

SamplesThe project advanced with gratifying speed.

Synonymsfastness, swiftness

Broader (hypernym)pace, rate

Narrower (hyponym)execution speed, graduality, gradualness, haste, hastiness, hurriedness, hurry, precipitation

Attributefast, slow

3. speed (act) changing location rapidly

Synonymshurrying, speeding

Broader (hypernym)motion, move, movement

Narrower (hyponym)acceleration, deceleration, quickening, scud, scudding, speedup

4. speed the ratio of the focal length to the diameter of a (camera) lens system

Synonymsf number, focal ratio, stop number

Broader (hypernym)ratio

5. speed (artifact) a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression

Synonymsamphetamine, pep pill, upper

Broader (hypernym)drug of abuse, excitant, stimulant, stimulant drug, street drug

Narrower (hyponym)amphetamine sulfate, amphetamine sulphate, bennie, Benzedrine, chalk, chicken feed, crank, deoxyephedrine, Dexedrine, dextroamphetamine sulphate, glass, ice, meth, methamphetamine, methamphetamine hydrochloride, Methedrine, shabu, trash

English verb: speed

1. speed (motion) move fast

SamplesHe rushed down the hall to receive his guests.
The cars raced down the street.

ExamplesThey speed up the hill

Synonymsbelt along, bucket along, cannonball along, hasten, hie, hotfoot, pelt along, race, rush, rush along, step on it

Pattern of useSomething ----s.
Somebody ----s

Broader (hypernym)go, locomote, move, travel

Narrower (hyponym)barge, buck, charge, dart, dash, flash, push forward, scoot, scud, shoot, shoot, shoot down, tear, thrust ahead

Antonymsdawdle, linger

2. speed (change) move faster

SamplesThe car accelerated.

ExamplesThese cars won't speed

Synonymsaccelerate, quicken, speed up

Pattern of useSomething ----s.
Somebody ----s.
Somebody ----s something.
Something ----s something

Broader (hypernym)deepen, intensify

Narrower (hyponym)brisk, brisk up, brisken

Antonymsdecelerate, slow, slow down, slow up, retard

3. speed (motion) move very fast

SamplesThe runner zipped past us at breakneck speed.

ExamplesThese cars won't speed

Synonymshurry, travel rapidly, zip

Pattern of useSomething is ----ing PP.
Somebody ----s PP

Broader (hypernym)go, locomote, move, travel

Narrower (hyponym)dart, fleet, flit, flutter, run, whizz, whizz along, zoom, zoom along

4. speed (motion) travel at an excessive or illegal velocity

SamplesI got a ticket for speeding.

ExamplesThese cars won't speed

Pattern of useSomething is ----ing PP.
Somebody ----s PP

Broader (hypernym)go, locomote, move, travel

5. speed (change) cause to move faster

SamplesHe accelerated the car.

Synonymsaccelerate, speed up

Pattern of useSomebody ----s something.
Somebody ----s somebody.
Something ----s somebody.
Something ----s something

Broader (hypernym)alter, change, modify

Antonymsdecelerate, slow down

Based on WordNet 3.0 copyright © Princeton University.
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