fast 1
(făst)adj. fast·er,
fast·est 1. Acting, moving, or capable of acting or moving quickly; swift.
2. a. Accomplished in relatively little time: a fast visit.
b. Acquired quickly with little effort and sometimes unscrupulously: made a fast buck scalping tickets.
3. Quick to understand or learn; mentally agile: a class for the faster students.
4. Indicating a time somewhat ahead of the actual time: The clock is fast.
5. Allowing rapid movement or action: a fast running track.
6. Designed for or compatible with a short exposure time: fast film.
7. a. Disposed to dissipation; wild: ran with a fast crowd.
b. Flouting conventional moral standards; sexually promiscuous.
8. Resistant, as to destruction or fading: fast colors.
9. Firmly fixed or fastened: a fast grip.
10. Fixed firmly in place; secure: shutters that are fast against the rain.
11. Lasting; permanent: fast rules and regulations.
12. Deep; sound: in a fast sleep.
adv. faster,
fastest 1. In a secure manner; tightly: hold fast.
2. To a sound degree; deeply: fast asleep.
3. In a rapid manner; quickly.
4. In quick succession: New ideas followed fast.
5. Ahead of the correct or expected time: a watch that runs fast.
6. In a dissipated, immoderate way: living fast.
7. Archaic Close by; near.
Idiom: fast friend A friend who is firm in loyalty: became fast friends after only knowing each other a few months.
Synonyms: fast1, rapid, swift, fleet2, speedy, quick, expeditious These adjectives refer to something marked by great speed.
Fast and
rapid are often used interchangeably, though
fast is more often applied to the person or thing in motion, and
rapid to the activity or movement involved:
a fast runner; rapid strides. Swift suggests smoothness and sureness of movement (
a swift current), and
fleet, lightness of movement (
The cheetah is the fleetest of animals).
Speedy refers to velocity (
a speedy train) or to promptness or hurry (
a speedy resolution to the problem).
Quick most often applies to what takes little time or to what is prompt:
a quick snack; your quick reaction. Expeditious suggests rapid efficiency:
sent the package by the most expeditious means. See Also Synonyms at
faithful.
fast 2
(făst)intr.v. fast·ed,
fast·ing,
fasts 1. To abstain from food.
2. To eat very little or abstain from certain foods, especially as a religious discipline.
n.1. The act or practice of abstaining from or eating very little food.
2. A period of such abstention or self-denial.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
fast
(fɑːst) adj1. acting or moving or capable of acting or moving quickly; swift
2. accomplished in or lasting a short time: fast work; a fast visit.
3. (prenominal) adapted to or facilitating rapid movement: the fast lane of a motorway.
4. requiring rapidity of action or movement: a fast sport.
5. (Horology) (of a clock, etc) indicating a time in advance of the correct time
6. given to an active dissipated life
7. of or characteristic of such activity: a fast life.
8. not easily moved; firmly fixed; secure
9. firmly fastened, secured, or shut
10. steadfast; constant (esp in the phrase fast friends)
11. (Athletics (Track & Field)) sport (of a playing surface, running track, etc) conducive to rapid speed, as of a ball used on it or of competitors playing or racing on it
12. (Dyeing) that will not fade or change colour readily: a fast dye.
13. (Dyeing)
a. proof against fading: the colour is fast to sunlight.
b. (in combination): washfast.
14. (Photography)
photog a. requiring a relatively short time of exposure to produce a given density: a fast film.
b. permitting a short exposure time: a fast shutter.
15. (Cricket) cricket (of a bowler) characteristically delivering the ball rapidly
16. informal glib or unreliable; deceptive: a fast talker.
17. archaic sound; deep: a fast sleep.
18. informal a deceptive or unscrupulous trick (esp in the phrase pull a fast one)
19. fast worker a person who achieves results quickly, esp in seductions
adv20. quickly; rapidly
21. soundly; deeply: fast asleep.
22. firmly; tightly
23. in quick succession
24. (Horology) in advance of the correct time: my watch is running fast.
25. in a reckless or dissipated way
26. fast by fast beside archaic close or hard by; very near
27. play fast and loose informal to behave in an insincere or unreliable manner
interj (Archery) archery (said by the field captain to archers) stop shooting!
[Old English fæst strong, tight; related to Old High German festi firm, Old Norse fastr]
fast
(fɑːst) vb (intr) to abstain from eating all or certain foods or meals, esp as a religious observance
na. an act or period of fasting
b. (as modifier): a fast day.
[Old English fæstan; related to Old High German fastēn to fast, Gothic fastan]
ˈfaster n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
fast1
(fæst, fɑst)
adj. and
adv. -er, -est,
n. adj. 1. moving or able to move, operate, function, or take effect quickly; quick; swift; rapid: a fast horse; a fast typist.
2. done in or taking comparatively little time: a fast race; fast work.
3. adapted to, allowing, productive of, or imparting rapid movement: a hull with fast lines.
4. able to understand or respond quickly: a fast mind.
5. a. (of a timepiece) indicating a time in advance of the correct time.
b. noting or according to daylight-saving time.
6. characterized by unrestrained or immoral conduct, esp. in sexual relations; wanton; loose: a fast crowd.
7. characterized by extreme energy and activity, esp. in the pursuit of pleasure: leading a fast life.
8. resistant (often used in combination): acid-fast.
9. firmly fixed in place; not easily moved; secure.
10. held or caught firmly: an animal fast in a trap.
11. firmly tied, as a knot.
12. closed and made secure, as a door, gate, or shutter.
13. such as to have securely: to lay fast hold on a thing.
14. firm in adherence; loyal; devoted: fast friends.
15. permanent, lasting, or unchangeable: a fast color.
16. a. (of money, profits, etc.) made quickly or easily and sometimes deviously.
b. cleverly quick and manipulative in making money: a fast operator.
17. Photog. a. (of a lens) able to transmit a relatively large amount of light in a relatively short time.
b. (of a film) requiring a relatively short exposure to attain a given density.
18. Horse Racing. a. (of a track condition) completely dry.
b. (of a track surface) very hard.
adv. 19. quickly, swiftly, or rapidly.
20. in quick succession.
21. tightly; firmly: to hold fast.
22. soundly: fast asleep.
23. in a wild or dissipated way; recklessly.
24. ahead of the correct or announced time.
25. Archaic. close; near: fast by.
n. 26. a fastening for a door, window, or the like.
Idioms: pull a fast one, to engage in unexpectedly unfair or deceitful behavior to achieve one's goal.
[before 900; Middle English; Old English fæst firm]
fast2
(fæst, fɑst)
v.i. 1. to abstain from all food.
2. to eat only sparingly or of certain kinds of food, esp. as a religious observance.
v.t. 3. to cause to abstain from food; put on a fast: to fast a patient before surgery.
n. 4. an abstinence from food, or a limiting of one's food, esp. when voluntary and as a religious observance.
5. a day or period of fasting.
[before 1000; Middle English; Old English
fæstan; c. Old Frisian
festia, Old High German
fastēn, Old Norse
fasta, Gothic
fastan; akin to
fast1]
fast3
(fæst, fɑst)
n. a chain or rope for mooring a vessel.
[1670–80; alter., by association with
fast1, of late Middle English
fest, perhaps n. use of
fest, past participle of
festen to
fasten, or < Old Norse
festr mooring rope]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.