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Definitions and Synonyms of speed | Another word for speed | What is speed?

Definition 1: changing location rapidly - [noun denoting act]

Synonyms for speed in the sense of this definition

(speed is a kind of ...) 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"

(... is a kind of speed ) the act of accelerating; increasing the speed

(... is a kind of speed ) the act of decelerating; decreasing the speed

"he initiated deceleration by braking"

(... is a kind of speed ) the act of moving along swiftly (as before a gale)

Definition 2: a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression - [noun denoting artifact]

Synonyms for speed in the sense of this definition

(speed is a kind of ...) 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

(speed is a kind of ...) a drug that temporarily quickens some vital process

(... is a kind of speed ) a sulfate derivative of amphetamine that is used as a stimulant for the central nervous system

(... is a kind of speed ) a form of amphetamine

(... is a kind of speed ) an isomer of amphetamine (trade name Dexedrine) used as a central nervous system stimulant

(... is a kind of speed ) an amphetamine derivative (trade name Methedrine) used in the form of a crystalline hydrochloride; used as a stimulant to the nervous system and as an appetite suppressant

Definition 3: a rate (usually rapid) at which something happens - [noun denoting attribute]

Samples where speed or its synonyms are used according to this definition

  • the project advanced with gratifying speed

Synonyms for speed in the sense of this definition

(speed is a kind of ...) the relative speed of progress or change

"he lived at a fast pace" "he works at a great rate" "the pace of events accelerated"

(... is a kind of speed ) overly eager speed (and possible carelessness)

"he soon regretted his haste"

(... is a kind of speed ) (computer science) the speed with which a computational device can execute instructions; measured in MIPS

(... is a kind of speed ) the quality of being gradual or of coming about by gradual stages

(... are attributes of speed) acting or moving or capable of acting or moving quickly

"fast film" "on the fast track in school" "set a fast pace" "a fast car"

(... are attributes of speed) not moving quickly; taking a comparatively long time

"a slow walker" "the slow lane of traffic" "her steps were slow" "he was slow in reacting to the news" "slow but steady growth"

Definition 4: the ratio of the focal length to the diameter of a (camera) lens system - [noun denoting linkdef]

Synonyms for speed in the sense of this definition

(speed is a kind of ...) the relative magnitudes of two quantities (usually expressed as a quotient)

Definition 5: distance travelled per unit time - [noun denoting time]

Synonyms for speed in the sense of this definition

(speed is a kind of ...) 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"

(... is a kind of speed ) the constant maximum velocity reached by a body falling through the atmosphere under the attraction of gravity

(... is a kind of speed ) (nautical) the minimum rate of motion needed for a vessel to be maneuvered

(... is a kind of speed ) 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

(... is a kind of speed ) velocity along the line of sight toward or away from the observer

(... is a kind of speed ) velocity with respect to the local standard of rest

(... is a kind of speed ) the velocity of a projectile as it leaves the muzzle of a gun

(... is a kind of speed ) excessive velocity

"the meteorites struck the earth with hypervelocity impacts"

(... is a kind of speed ) the speed of an aircraft relative to the ground

(... is a kind of speed ) the minimum velocity needed to escape a gravitational field

(... is a kind of speed ) the speed of an aircraft relative to the air in which it is flying

(... is a kind of speed ) (physics) the rate of change of the angular position of a rotating body; usually expressed in radians per second or radians per minute

Definition 6: move faster - [verb of change]

Samples where speed or its synonyms are used according to this definition

  • The car accelerated

Synonyms for speed in the sense of this definition

(speed is a kind of ...) become more intense

"The debate intensified" "His dislike for raw fish only deepened in Japan"

(... is a kind of speed ) become brisk

"business brisked up"

Definition 7: cause to move faster - [verb of change]

Samples where speed or its synonyms are used according to this definition

  • He accelerated the car

Synonyms for speed in the sense of this definition

(speed is a kind of ...) cause to change; make different; cause a transformation

"The advent of the automobile may have altered the growth pattern of the city" "The discussion has changed my thinking about the issue"

Definition 8: move very fast - [verb of motion]

Samples where speed or its synonyms are used according to this definition

  • The runner zipped past us at breakneck speed

Synonyms for speed in the sense of this definition

(speed is a kind of ...) change location; move, travel, or proceed, also metaphorically

"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" "news travelled fast"

(... is a kind of speed ) move along rapidly and lightly; skim or dart

"The hummingbird flitted among the branches"

(... is a kind of speed ) 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"

(... is a kind of speed ) move along very quickly

Definition 9: travel at an excessive or illegal velocity - [verb of motion]

Samples where speed or its synonyms are used according to this definition

  • I got a ticket for speeding

(speed is a kind of ...) change location; move, travel, or proceed, also metaphorically

"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" "news travelled fast"

Definition 10: move hurridly - [verb of motion]

Samples where speed or its synonyms are used according to this definition

  • He rushed down the hall to receive his guests
  • The cars raced down the street

Synonyms for speed in the sense of this definition

(speed is a kind of ...) change location; move, travel, or proceed, also metaphorically

"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" "news travelled fast"

(... is a kind of speed ) push one's way

"she barged into the meeting room"

(... is a kind of speed ) move quickly and violently

"The car tore down the street" "He came charging into my office"

(... is a kind of speed ) run or move very quickly or hastily

"She dashed into the yard"

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