سرعت حرکت ،عجله ،کاميابى ،ميزان شتاب ،درجه تندى ،وضع ،حالت ،شانس خوب داشتن ،کامياب بودن ،باسرعت راندن ،سريع کارکردن ،تسريع کردن علوم مهندسى : عده دور عمران : سرعت معمارى : سرعت شيمى : تندى روانشناسى : سرعت زيست شناسى : سرعت ورزش : اندازه سرعت ،مدت زمان تمام کردن مسابقه اسبدوانى علوم هوايى : سرعت علوم نظامى : شتاب حرکت
distance travelled per unit time(n)
Synonyms: speed
velocity
Hyponyms: airspeed
angular velocity
c
escape velocity
groundspeed
hypervelocity
light speed
muzzle velocity
peculiar velocity
radial velocity
speed of light
steerageway
terminal velocity
Hypernyms: rate
move fast(v)
Synonyms: belt along
bucket along
cannonball along
hasten
hie
hotfoot
pelt along
race
rush
rush along
speed
step on it
Hyponyms: barge
buck
charge
dart
dash
flash
push forward
scoot
scud
shoot
shoot down
tear
thrust ahead
Hypernyms: go
locomote
move
travel
Examples: He rushed down the hall to receive his guests
The cars raced down the street
Antonyms: dawdle
linger
a rate (usually rapid) at which something happens(n)
Synonyms: fastness
speed
swiftness
Hyponyms: execution speed
graduality
gradualness
haste
hastiness
hurriedness
hurry
precipitation
Hypernyms: pace
rate
Examples: the project advanced with gratifying speed
move faster(v)
Synonyms: accelerate
quicken
speed
speed up
Hyponyms: brisk
brisk up
brisken
Hypernyms: deepen
intensify
Examples: The car accelerated
Antonyms: decelerate
retard
slow
slow down
slow up
changing location rapidly(n)
Synonyms: hurrying
speed
speeding
Hyponyms: acceleration
deceleration
quickening
scud
scudding
speedup
Hypernyms: motion
move
movement
move very fast(v)
Synonyms: hurry
speed
travel rapidly
zip
Hyponyms: dart
fleet
flit
flutter
run
whizz
whizz along
zoom
zoom along
Hypernyms: go
locomote
move
travel
Examples: The runner zipped past us at breakneck speed
the ratio of the focal length to the diameter of a (camera) lens system(n)
Synonyms: f number
focal ratio
speed
stop number
Hypernyms: ratio
travel at an excessive or illegal velocity(v)
Synonyms: speed
Hypernyms: go
locomote
move
travel
Examples: I got a ticket for speeding
a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression(n)
Synonyms: amphetamine
pep pill
speed
upper
Hyponyms: amphetamine sulfate
amphetamine sulphate
bennie
benzedrine
chalk
chicken feed
crank
deoxyephedrine
dexedrine
dextroamphetamine sulphate
glass
ice
meth
methamphetamine
methamphetamine hydrochloride
methedrine
shabu
trash
Hypernyms: drug of abuse
excitant
stimulant
stimulant drug
street drug
cause to move faster(v)
Synonyms: accelerate
speed
speed up
Hypernyms: alter
change
modify
Examples: He accelerated the car
Antonyms: decelerate
slow down
In kinematics, the speed of an object is the magnitude of the change of its position over time or the magnitude of the change of its position per unit of time; it is thus a scalar quantity. The average speed of an object in an interval of time is the distance travelled by the object divided by the duration of the interval; the instantaneous speed is the limit of the average speed as the duration of the time interval approaches zero. Speed is the magnitude of velocity, which indicates additionally the direction of motion.