airspeed - the speed of an aircraft relative to the air in which it is flying

escape velocity - the minimum velocity needed to escape a gravitational field

groundspeed - the speed of an aircraft relative to the ground

hypervelocity - excessive velocity; "the meteorites struck the earth with hypervelocity impacts"

muzzle velocity - the velocity of a projectile as it leaves the muzzle of a gun

peculiar velocity - velocity with respect to the local standard of rest

radial velocity - velocity along the line of sight toward or away from the observer

light speed, speed of light, c - the speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meters per second

steerageway - (nautical) the minimum rate of motion needed for a vessel to be maneuvered

terminal velocity - the constant maximum velocity reached by a body falling through the atmosphere under the attraction of gravity

rate - a magnitude or frequency relative to a time unit; "they traveled at a rate of 55 miles per hour"; "the rate of change was faster than expected"

pace, rate - the relative speed of progress or change; "he lived at a fast pace"; "he works at a great rate"; "the pace of events accelerated"

haste, hastiness, hurriedness, hurry, precipitation - overly eager speed (and possible carelessness); "he soon regretted his haste"

acceleration - an increase in speed; "modern science caused an acceleration of cultural change"

deceleration, retardation, slowing - a decrease in speed; "the deceleration of the arms race"

execution speed - (computer science) the speed with which a computational device can execute instructions; measured in MIPS

graduality, gradualness - the quality of being gradual or of coming about by gradual stages

movement, move, motion - the act of changing location from one place to another; "police controlled the motion of the crowd"; "the movement of people from the farms to the cities"; "his move put him directly in my path"

speedup, acceleration, quickening - the act of accelerating; increasing the speed

scud, scudding - the act of moving along swiftly (as before a gale)

ratio - the relative magnitudes of two quantities (usually expressed as a quotient)

amphetamine sulfate, amphetamine sulphate - a sulfate derivative of amphetamine that is used as a stimulant for the central nervous system

bennie, Benzedrine - a form of amphetamine

Dexedrine, dextroamphetamine sulphate - an isomer of amphetamine (trade name Dexedrine) used as a central nervous system stimulant

drug of abuse, street drug - a drug that is taken for nonmedicinal reasons (usually for mind-altering effects); drug abuse can lead to physical and mental damage and (with some substances) dependence and addiction

deoxyephedrine, meth, methamphetamine, methamphetamine hydrochloride, Methedrine, shabu, chicken feed, crank, chalk, trash, glass, ice - amphetamine used in the form of a crystalline hydrochloride; used as a stimulant to the nervous system and as an appetite suppressant

stimulant drug, stimulant - a drug that temporarily quickens some vital process

go, locomote, move, travel - change location; move, travel, or proceed; "How fast does your new car go?"; "We travelled from Rome to Naples by bus"; "The policemen went from door to door looking for the suspect"; "The soldiers moved towards the city in an attempt to take it before night fell"

barge, push forward, thrust ahead - push one's way; "she barged into the meeting room"

shoot down, tear, buck, charge, shoot - move quickly and violently; "The car tore down the street"; "He came charging into my office"

dash, scoot, scud, dart, flash, shoot - run or move very quickly or hastily; "She dashed into the yard"

accelerate, quicken, speed up, speed - move faster; "The car accelerated"

brisk, brisk up, brisken - become brisk; "business brisked up"

deepen, intensify - become more intense; "The debate intensified"; "His dislike for raw fish only deepened in Japan"

go, locomote, move, travel - change location; move, travel, or proceed; "How fast does your new car go?"; "We travelled from Rome to Naples by bus"; "The policemen went from door to door looking for the suspect"; "The soldiers moved towards the city in an attempt to take it before night fell"

go, locomote, move, travel - change location; move, travel, or proceed; "How fast does your new car go?"; "We travelled from Rome to Naples by bus"; "The policemen went from door to door looking for the suspect"; "The soldiers moved towards the city in an attempt to take it before night fell"

dart, fleet, flit, flutter - move along rapidly and lightly; skim or dart

run - move fast by using one's feet, with one foot off the ground at any given time; "Don't run--you'll be out of breath"; "The children ran to the store"

whizz along, zoom, zoom along, whizz - move along very quickly

accelerate, quicken, speed up, speed - move faster; "The car accelerated"

modify, qualify - add a modifier to a constituent