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speed
[speed]
noun
rapidity in moving, going, traveling, proceeding, or performing; swiftness; celerity: the speed of sound.
the speed of light;
the speed of sound.
Synonyms: , , , ,Antonyms:relative rapidity in moving, going, etc.; rate of motion or progress.
full speed ahead.
Synonyms: , , , ,full, maximum, or optimum rate of motion.
The car gets to speed in just nine seconds.
Automotive.Ģża transmission gear ratio.
Photography.Ģż
Also called film speed.Ģżthe sensitivity of a film or paper to light, measured by an ASA or DIN index, which assigns low numbers to slow film and higher numbers to faster film.
Also called shutter speed.Ģżthe length of time a shutter is opened to expose the film or digital sensor inside the camera to light.
the largest opening at which a lens can be used.
Slang.Ģża stimulating drug, as caffeine, ephedrine, or especially methamphetamine or amphetamine.
Informal.Ģża person or thing that is compatible with or typical of one's ability, personality, desires, etc..
My speed is writing postcards on the porch while everyone else is tearing around the tennis court.
Archaic.Ģżsuccess or prosperity.
verb (used with object)
to promote the success of (an affair, undertaking, etc.); further, forward, or expedite.
Synonyms: , ,to direct (the steps, course, way, etc.) with speed.
to increase the rate of speed of (usually followed byup ).
to speed up industrial production.
Synonyms:to bring to a particular speed, as a machine.
to cause to move, go, or proceed with speed.
to expedite the going of.
to speed the parting guest.
Archaic.Ģżto cause to succeed or prosper.
verb (used without object)
to move, go, pass, or proceed with speed or rapidity.
to drive a vehicle at a rate that exceeds the legally established maximum.
He was arrested for speeding.
to increase the rate of speed or progress (usually followed byup ).
to get on or fare in a specified or particular manner.
Archaic.Ģżto succeed or prosper.
speed
/ ²õ±č¾±Ė»å /
noun
the act or quality of acting or moving fast; rapidity
the rate at which something moves, is done, or acts
physics a scalar measure of the rate of movement of a body expressed either as the distance travelled divided by the time taken ( average speed ) or the rate of change of position with respect to time at a particular point ( instantaneous speed ). It is measured in metres per second, miles per hour, etc
a rate of rotation, usually expressed in revolutions per unit time
a gear ratio in a motor vehicle, bicycle, etc
( in combination )
a three-speed gear
photog a numerical expression of the sensitivity to light of a particular type of film, paper, or plate See also ISO rating
photog a measure of the ability of a lens to pass light from an object to the image position, determined by the aperture and also the transmitting power of the lens. It increases as the f-number is decreased and vice versa
a slang word for amphetamine
archaicĢżprosperity or success
quickly
operating at an acceptable or competitive level
in possession of all the relevant or necessary information
verb
to move or go or cause to move or go quickly
(intr) to drive (a motor vehicle) at a high speed, esp above legal limits
(tr) to help further the success or completion of
slangĢż(intr) to take or be under the influence of amphetamines
(intr) to operate or run at a high speed
archaicĢż
(intr) to prosper or succeed
(tr) to wish success to
speed
The ratio of the distance traveled by an object (regardless of its direction) to the time required to travel that distance.
Compare velocity
Other 51³Ō¹Ļ Forms
- speedful adjective
- speedfully adverb
- speedfulness noun
- speedingly adverb
- speedingness noun
- speedless adjective
- multispeed adjective
- outspeed verb (used with object)
- overspeed verb
- Ė²õ±č±š±š»å±š°ł noun
51³Ō¹Ļ History and Origins
Origin of speed1
51³Ō¹Ļ History and Origins
Origin of speed1
Idioms and Phrases
at full / top speed,
at the greatest speed possible.
We drove down the highway at full speed.
to the maximum of one's capabilities; with great rapidity.
He worked at full speed.
up to speed,
operating at full or optimum speed.
functioning or producing at an expected, acceptable, or competitive level; up to par.
a new firm not yet up to speed.
Synonym Study
Example Sentences
Cooper hopes to end the use of hotels by reducing small boat crossings, speeding up the asylum application process and moving people into alternative accommodation.
Her speed was used on the bases and on defense.
White House top border policy advisor Tom Homan told Fox News the next morning that officials planned to speed up arrests and increase teams in the field tenfold.
Yet there are worries that while regulations are in place - there are often no follow-up checks because of the speed of the building boom.
We are driving at speed through the green hills of rural Hertfordshire.
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Related 51³Ō¹Ļs
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, Ā© Random House, Inc. 2023
Idioms from The American HeritageĀ® Idioms Dictionary copyright Ā© 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
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