Fast (noun) Definition, Meaning & Examples

adjective, fast·er, fast·est.
  1. moving or able to move, operate, function, or take effect quickly; quick; swift; rapid: a fast horse;a fast pain reliever;a fast thinker.
  2. done in comparatively little time; taking a comparatively short time: a fast race;fast work.
  3. (of time)
    • indicating a time in advance of the correct time, as of a clock.
    • noting or according to daylight-saving time.
  4. adapted to, allowing, productive of, or imparting rapid movement: a hull with fast lines;one of the fastest pitchers in baseball.
  5. characterized by unrestrained conduct or lack of moral conventions, especially in sexual relations; wanton; loose: Some young people in that era were considered fast, if not downright promiscuous.
  6. characterized by hectic activity: leading a fast life.
  7. resistant: acid-fast.
  8. firmly fixed in place; not easily moved; securely attached.
  9. held or caught firmly, so as to be unable to escape or be extricated: an animal fast in a trap.
  10. firmly tied, as a knot.
  11. closed and made secure, as a door, gate, or shutter.
  12. such as to hold securely: to lay fast hold on a thing.
  13. firm in adherence; loyal; devoted: fast friends.
  14. permanent, lasting, or unchangeable: a fast color;a hard and fast rule.
  15. Informal.
    • (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.
  16. Photography.
    • (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.
  17. Horse Racing.
    • (of a track condition) completely dry.
    • (of a track surface) very hard.
adverb, fast·er, fast·est.
  1. quickly, swiftly, or rapidly.
  2. in quick succession: Events followed fast upon one another to the crisis.
  3. tightly; firmly: to hold fast.
  4. soundly: fast asleep.
  5. in a wild or dissipated way.
  6. ahead of the correct or announced time.
  7. close; near:fast by.
noun
  1. a fastening for a door, window, or the like.
Idioms
  1. play (def. 80).
  2. to play an unfair trick; practice deceit: He tried to pull a fast one on us by switching the cards.
verb (used without object)
  1. to abstain from all food.
  2. to eat only sparingly or of certain kinds of food, especially as a religious observance.
verb (used with object)
  1. to cause to abstain entirely from or limit food; put on a fast: to fast a patient for a day before surgery.
noun
  1. an abstinence from food, or a limiting of one's food, especially when voluntary and as a religious observance; fasting.
  2. a day or period of fasting.
noun
  1. a chain or rope for mooring a vessel.
adjective
  1. acting or moving or capable of acting or moving quickly; swift
  2. accomplished in or lasting a short time
  3. adapted to or facilitating rapid movement
  4. requiring rapidity of action or movement
  5. (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
  8. not easily moved; firmly fixed; secure
  9. firmly fastened, secured, or shut
  10. steadfast; constant (esp in the phrase fast friends)
  11. (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. that will not fade or change colour readily
    • proof against fading
    • (in combination)
  13. photog
    • requiring a relatively short time of exposure to produce a given density
    • permitting a short exposure time
  14. (of a bowler) characteristically delivering the ball rapidly
  15. glib or unreliable; deceptive
  16. sound; deep
  17. a deceptive or unscrupulous trick (esp in the phrase pull a fast one)
  18. a person who achieves results quickly, esp in seductions
adverb
  1. quickly; rapidly
  2. soundly; deeply
  3. firmly; tightly
  4. in quick succession
  5. in advance of the correct time
  6. in a reckless or dissipated way
  7. close or hard by; very near
  8. to behave in an insincere or unreliable manner
interjection
  1. (said by the field captain to archers) stop shooting!
verb
  1. to abstain from eating all or certain foods or meals, esp as a religious observance
noun
    • an act or period of fasting
    • (as modifier)
Fast (noun) Definition, Meaning & Examples

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