» speed

Words people most associate with “speed”:

  1. fast,
  2. demon,
  3. racer,
  4. limit,
  5. car

[via wordassociation.org]

Noun (5 meanings)

1. distance travelled per unit time.

speed, velocity

speed is a type of:
  • rate (noun) - a magnitude or frequency relative to a time unit
types of speed:
  • airspeed (noun) - the speed of an aircraft relative to the air in which it is flying
  • angular velocity (noun) - (physics) the rate of change of the angular position of a rotating body
  • escape velocity (noun) - the minimum velocity needed to escape a gravitational field
  • groundspeed (noun) - the speed of an aircraft relative to the ground
  • hypervelocity (noun) - excessive velocity
  • muzzle velocity (noun) - the velocity of a projectile as it leaves the muzzle of a gun
  • peculiar velocity (noun) - velocity with respect to the local standard of rest
  • radial velocity (noun) - velocity along the line of sight toward or away from the observer
  • speed of light, light speed, c (noun) - the speed at which light travels in a vacuum
  • steerageway (noun) - (nautical) the minimum rate of motion needed for a vessel to be maneuvered
  • terminal velocity (noun) - the constant maximum velocity reached by a body falling through the atmosphere under the attraction of gravity
speed is derivationally related to:

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

speed, swiftness, fastness

Example:
  • “the project advanced with gratifying speed”
speed is a type of:
  • pace, rate (noun) - the relative speed of progress or change
types of speed:
Attribute:
  • fast (adjective) - acting or moving or capable of acting or moving quickly
  • slow (adjective) - not moving quickly
speed is derivationally related to:

3. changing location rapidly.

speed, speeding, hurrying

speed is a type of:
types of speed:
speed is derivationally related to:

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

focal ratio, f number, stop number, speed

speed is a type of:
  • ratio (noun) - the relative magnitudes of two quantities (usually expressed as a quotient)

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

amphetamine, pep pill, upper, speed

speed is a type of:
types of speed:

Verb (5 meanings)

Examples:
  • “He rushed down the hall to receive his guests”,
  • “The cars raced down the street”
to speed is the opposite of:
to speed is a way to:
ways to speed:
to speed is derivationally related to:
see also:

2. move faster.

to accelerate, speed up, speed, quicken

Example:
  • “The car accelerated”
to speed is the opposite of:
to speed is a way to:
ways to speed:
to speed is derivationally related to:

3. move very fast.

to travel rapidly, speed, hurry, zip

Example:
  • “The runner zipped past us at breakneck speed”
to speed is a way to:
ways to speed:
to speed is derivationally related to:
see also:

4. travel at an excessive or illegal velocity.

to speed

Example:
  • “I got a ticket for speeding”
to speed is a way to:
to speed is derivationally related to:

5. cause to move faster.

to accelerate, speed, speed up

Example:
  • “He accelerated the car”
to speed is the opposite of:
to speed is a way to:
to speed is derivationally related to: