adjective, fast·er, fast·est.
- 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.
adverb, fast·er, fast·est.
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Idioms for fast
Origin of fast1
SYNONYMS FOR fast
synonym study for fast
Words nearby fast
Definition for fast (2 of 3)
verb (used without object)
verb (used with object)
Origin of fast2
OTHER WORDS FROM fastun·fast·ing, adjective
Definition for fast (3 of 3)
Example sentences from the Web for fast
The service sector unions — the health care workers, teachers, and public service employees — are larger and growing the fastest, and they are generally more climate-friendly.At last, a climate policy platform that can unite the left|David Roberts|July 9, 2020|Vox
Many people already schedule to-dos and the startup wants to offer the fastest way to create to-dos, schedule events, check your calendar “and even jump into Zoom calls.”Creandum backs Amie, a new productivity app from ex-N26 product manager Dennis Müller|Steve O'Hear|July 9, 2020|TechCrunch
If the spring can’t rebound fast enough when going over a series of small bumps, it can change the bike’s geometry and lead to a rougher ride.The real difference between a cheap bike and an expensive one|Stan Horaczek|July 8, 2020|Popular Science
Along the way, he rode bikes hard or climbed mountains fast nearly every weekend for two decades.My Crazy Bid to See a Solar Eclipse at 20,000 Feet|Mark Jenkins|July 8, 2020|Outside Online
But, she said, “I hope that it becomes a moment of faster change.”Deep Dive: How publishers must adapt to the new normal|Digiday|July 6, 2020|Digiday
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)
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