- indicating a time in advance of the correct time, as of a clock.
- noting or according to daylight-saving time.
- (of money, profits, etc.) made quickly or easily and sometimes deviously: He earned some fast change helping the woman with her luggage.
- cleverly quick and manipulative in making money: a fast operator when it comes to closing a business deal.
- (of a lens) able to transmit a relatively large amount of light in a relatively short time.
- (of a film) requiring a relatively short exposure time to attain a given density.
- (of a track condition) completely dry.
- (of a track surface) very hard.
OTHER WORDS FOR fast
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Idioms about fast
Origin of fast1
synonym study for fast
Words nearby fast
Other definitions for fast (2 of 3)
Origin of fast2
OTHER WORDS FROM fastun·fast·ing, adjective
Other definitions for fast (3 of 3)
How to use fast in a sentence
“It’s a big goal, but I think we could do $75-100 million in sales next year with Fabletics Men, which is our first full year with this line, which would be very, very fast growth,” Goldenberg says.Fabletics’ Adam Goldenberg and Kevin Hart on what’s next for the activewear empire|Lucas Matney|September 17, 2020|TechCrunch
The upshot is a technology that provides a fast and low cost way to reduce emissions, Johnson told TechCrunch.ClearFlame Engine Technologies takes aim at cleaning up diesel engines|Kirsten Korosec|September 17, 2020|TechCrunch
Huoseh would challenge his players to record the fastest times possible in their runs before ending the session with a scrimmage and a visit to a nearby Subway for lunch.A Canadian Teenager Is One Of The Fastest Soccer Players In The World|Julian McKenzie|September 16, 2020|FiveThirtyEight
Together with astrophysicists Ke Fang of Stanford University and Ben Margalit of the University of California, Berkeley, Metzger calculated the energies of any neutrinos that would have been produced by the fast radio burst seen in April.Neutrinos could reveal how fast radio bursts are launched|Lisa Grossman|September 16, 2020|Science News
The tablet comes with a so-called A12 Bionic chip, designed by Apple, that gives it a 40% CPU speed boost and graphics that are twice as fast as last year’s model.Everything announced at Apple’s ‘Time Flies’ event today|rhhackettfortune|September 15, 2020|Fortune
The focus here was on how fast oil would come out of the Canadian fields.
Both high fashion and the fast, commercial fashion of Target are supposed to be about aspiration.One Vogue Cover Doesn’t Solve Fashion’s Big Race Problem|Danielle Belton|January 2, 2015|DAILY BEAST
And if people find themselves dissatisfied with how often they turn to fast food, Bacon says to try things like batch cooking.
While grocery shopping a guy I had noticed following me earlier, walked by me really fast and said, ‘You look shorter in person.’Porn Stars on the Year in Porn: Drone Erotica, Belle Knox, and Wild Sex|Aurora Snow|December 27, 2014|DAILY BEAST
Incidentally, Rousteing has no qualms with fast-fashion brands appropriating his designs either.
The tears came so fast to Mrs. Pontellier's eyes that the damp sleeve of her peignoir no longer served to dry them.The Awakening and Selected Short Stories|Kate Chopin
There are a number of bacilli, called acid-fast bacilli, which stain in the same way as the tubercle bacillus.A Manual of Clinical Diagnosis|James Campbell Todd
You see, they always butter their chairs so that they won't stick fast when they sit down.Davy and The Goblin|Charles E. Carryl
You see, I am the city undertaker, and the people are dying here so fast, that I can hardly supply the demand for coffins.
And since he was a very fast runner—for short distances—he met Grandfather Mole just as the old chap was crawling up the bank.The Tale of Grandfather Mole|Arthur Scott Bailey
British Dictionary definitions for fast (1 of 2)
- proof against fadingthe colour is fast to sunlight
- (in combination)washfast
- requiring a relatively short time of exposure to produce a given densitya fast film
- permitting a short exposure timea fast shutter
Word Origin for fast
British Dictionary definitions for fast (2 of 2)
- an act or period of fasting
- (as modifier)a fast day
Derived forms of fastfaster, noun
Word Origin for fast
Medical definitions for fast (1 of 2)
Medical definitions for fast (2 of 2)
Other Idioms and Phrases with fast
In addition to the idioms beginning with fast
- fast and furious
- fast and loose
- fast buck
- fast lane
- fast track
- get nowhere (fast)
- hard and fast
- pull a fast one
- stand one's ground (fast)
- thick and fast