- 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 film.
- the largest opening at which a lens can be used.
verb (used with object), sped or speed·ed, speed·ing.
verb (used without object), sped or speed·ed, speed·ing.
- 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
SYNONYMS FOR speed
Examples from the Web for speed
Term limits could be a prescription to speed change along.
The jet engine instantly brought two advances over propellers: it doubled the speed and it was far more reliable.Flight 8501 Poses Question: Are Modern Jets Too Automated to Fly?|Clive Irving|January 4, 2015|DAILY BEAST
One report has the AirAsia Airbus flying at a speed very close to what would trigger a low speed stall.
Said it was like speed dating because he was late after hitting every wrong gate on the lot.Exclusive: Sony Emails Slam Leonardo DiCaprio, Willow and Jaden Smith, Gush Over Ryan Gosling|William Boot|December 13, 2014|DAILY BEAST
In a flash he deflects the shot, with the speed of instinct, right past the goalkeeper.
I suppose it is a sort of nemesis of wit; the skidding of a wheel in the height of its speed.George Bernard Shaw|Gilbert K. Chesterton
And they have animals on which they sit, and which carry them at a speed far greater than that at which a man can run?By Right of Conquest|G. A. Henty
Why should they not speed the conviction of him whose intrigues were accessory to this double homicide?Oswald Langdon|Carson Jay Lee
The day appointed for sailing was fast approaching, and had to make all speed to get through various engagements in Manilla.Kathay: A Cruise in the China Seas|W. Hastings Macaulay
They started in an almost hopeless pursuit, for the speed of an Indian in the woods is hard to cope with.Some Three Hundred Years Ago|Edith Gilman Brewster
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 Formsspeeder, noun
Word Origin for speed
Science 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)