- Also called film speed . the 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 . the 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.
verb (used with object), sped [sped] /spɛd/ or speed·ed, speed·ing.
verb (used without object), sped [sped] /spɛd/ or speed·ed, speed·ing.
SYNONYMS FOR speed
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Idioms for 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.
- 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.
Origin of speed
synonym study for speed
OTHER WORDS FROM speed
Example sentences from the Web for speed
This way he pulled scores from the death marches, and speeded them back to Budapest.Raoul Wallenberg’s World War II Heroism a Lesson for World Doing Nothing About Syria|Kati Marton|March 15, 2012|DAILY BEAST
Speeded-up expensing for business adds another $10 billion or so.
Everything speeded up for him over the past month, and this reprieve he's been forced to take is exactly what he needs.
He went careering forward to his point, overturning and wounding; but as he speeded on, he left a train of enemies behind.The Pastor's Fire-side Vol. 3 of 4|Jane Porter
Shiv speeded up to forty miles an hour as he rolled to the top of a little hill.
If Delancy's car hadn't speeded up, Black Hood in the car behind might not have taken particular notice of it.
In a trice he speeded up the Comet and leaped forward toward the caon, sand and loosened pebbles dropping all around him.Motor Matt's "Century" Run|Stanley R. Matthews
She made but few changes in the material things, but the two old bachelors and the occasional cow hands were certainly speeded up.David Lannarck, Midget|George S. Harney
British Dictionary definitions for speed
- a gear ratio in a motor vehicle, bicycle, etc
- (in combination)a three-speed gear
- operating at an acceptable or competitive level
- in possession of all the relevant or necessary information
verb speeds, speeding, sped or speeded
- (intr) to prosper or succeed
- (tr) to wish success to
Derived forms of speedspeeder, noun
Word Origin for speed
Scientific definitions for speed
Idioms and Phrases with speed
In addition to the idiom beginning with speed
- speed up
- full speed ahead
- up to par (speed)