speed
1. distance travelled per unit time (Freq. 25)
• Syn:
velocity
• Derivationally related forms:
speedy
• Hypernyms:
rate
• Hyponyms:
angular velocity, airspeed, escape velocity, groundspeed, hypervelocity,
muzzle velocity, peculiar velocity, radial velocity, speed of light, light speed, c,
steerageway, terminal velocity
2. a rate (usually rapid) at which something happens (Freq. 9)
- the project advanced with gratifying speed
• Syn:
swiftness, fastness
• Derivationally related forms:
fast (for: fastness), swift (for: swiftness), speedy
• Hypernyms:
pace, rate
• Hyponyms:
haste, hastiness, hurry, hurriedness, precipitation,
execution speed, graduality, gradualness
• Attrubites:
fast, slow
3. changing location rapidly (Freq. 4)
• Syn:
speeding, hurrying
• Derivationally related forms:
hurry (for: hurrying), speed (for: speeding), speedy
• Hypernyms:
motion, movement, move
• Hyponyms:
acceleration, quickening, speedup, deceleration, scud, scudding
4. the ratio of the focal length to the diameter of a (camera) lens system
• Syn:
focal ratio, f number, stop number
• Hypernyms:
ratio
5. a central nervous system stimulant that increases energy and decreases appetite;
used to treat narcolepsy and some forms of depression
• Syn:
amphetamine, pep pill, upper
• Hypernyms:
stimulant, stimulant drug, excitant, drug of abuse, street drug
• Hyponyms:
amphetamine sulfate, amphetamine sulphate, Benzedrine, bennie, dextroamphetamine sulphate,
Dexedrine, methamphetamine, methamphetamine hydrochloride, Methedrine, meth, deoxyephedrine,
deoxyephedrine, chicken feed, crank, glass, ice,
shabu, trash
1. move fast (Freq. 7)
- He rushed down the hall to receive his guests
- The cars raced down the street
• Syn:
rush, hotfoot, hasten, hie, race,
pelt along, rush along, cannonball along, bucket along, belt along, step on it
• Ant:
linger (for: rush)
• See Also:
speed up
• Derivationally related forms:
speeding, rush (for: rush), rushing (for: rush)
• Hypernyms:
travel, go, move, locomote
• Hyponyms:
barge, thrust ahead, push forward, tear, shoot,
shoot down, charge, buck, dart, dash, scoot,
scud, flash
• Verb Frames:
- Something ----s
- Somebody ----s
- They speed up the hill
2. move faster (Freq. 5)
- The car accelerated
• Syn:
accelerate, speed up, quicken
• Ant:
decelerate (for: accelerate)
• Derivationally related forms:
quickening (for: quicken), speedup (for: speed up), acceleratory (for: accelerate), accelerative (for: accelerate)
• Hypernyms:
intensify, deepen
• Hyponyms:
brisk, brisk up, brisken
• Verb Frames:
- Something ----s
- Somebody ----s
- Somebody ----s something
- Something ----s something
- These cars won't speed
3. move very fast (Freq. 3)
- The runner zipped past us at breakneck speed
• Syn:
travel rapidly, hurry, zip
• See Also:
speed up
• Derivationally related forms:
hurry (for: hurry), hurrying (for: hurry)
• Hypernyms:
travel, go, move, locomote
• Hyponyms:
flit, flutter, fleet, dart, run,
zoom, zoom along, whizz, whizz along
• Verb Frames:
- Something is ----ing PP
- Somebody ----s PP
- These cars won't speed
4. travel at an excessive or illegal velocity (Freq. 2)
- I got a ticket for speeding
• Derivationally related forms:
speeder, speeding
• Hypernyms:
travel, go, move, locomote
• Verb Frames:
- Something is ----ing PP
- Somebody ----s PP
- These cars won't speed
5. cause to move faster (Freq. 1)
- He accelerated the car
• Syn:
accelerate, speed up
• Ant:
decelerate (for: accelerate)
• Derivationally related forms:
speedup (for: speed up), acceleratory (for: accelerate), accelerative (for: accelerate), acceleration (for: accelerate), accelerator (for: accelerate)
• Hypernyms:
change, alter, modify
• Verb Frames:
- Somebody ----s something
- Somebody ----s somebody
- Something ----s somebody
- Something ----s something
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