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Adjective: fast (faster,fastest)  fãst
  1. Acting or moving or capable of acting or moving quickly
    "fast film"; "on the fast track in school"; "set a fast pace"; "a fast car"
  2. (of surfaces) conducive to rapid speeds
    "a fast road"; "grass courts are faster than clay"
  3. Resistant to destruction or fading
    "fast colours"
  4. Unrestrained by convention or morality
    "fast women";
    - debauched, degenerate, degraded, dissipated, dissolute, libertine, profligate, riotous
  5. Hurried and brief
    "a fast visit";
    - flying, quick
  6. Securely fixed in place
    - firm, immobile
  7. Unwavering in devotion to friend, vow or cause
    "fast friends";
    - firm, loyal, truehearted
  8. (of a photographic lens or emulsion) causing a shortening of exposure time
    "a fast lens"
  9. (used of timepieces) indicating a time ahead of or later than the correct time
    "my watch is fast"
  10. (music) at a rapid tempo
    "the band played a fast fox trot"
Adverb: fast  fãst
  1. Quickly or rapidly (often used as a combining form)
    "how fast can he get here?"; "ran as fast as he could"; "needs medical help fast"; "fast-running rivers"; "fast-breaking news"; "fast-opening (or fast-closing) shutters"
  2. Firmly or closely
    "held fast to the rope"; "her foot was stuck fast";
    - tight
Noun: fast  fãst
  1. Abstaining from food
    - fasting
Verb: fast  fãst
  1. Abstain from certain foods, as for religious or medical reasons
    "Catholics sometimes fast during Lent"
  2. Abstain from eating
    "Before the medical exam, you must fast"

Derived forms: fastest, fasting, fasted, faster, fasts

See also: accelerated, alacritous, allegretto, allegro, andantino, blistering, causative, double-quick, express, faithful, fast-breaking, fastness, fast-paced, fixed, fleet, high-speed, high-velocity, hot, hurried, hurrying, immediate, immoral, imperviable, impervious, instant, instantaneous, meteoric, nippy [Brit, informal], prestissimo, presto, prompt, quick, rapid, red-hot, scurrying, smart, smooth, speed, speedy, straightaway, sudden, swift, swiftness, vivace, windy, winged

Type of: abstain, abstinence, desist, refrain

Antonym: slow

Encyclopedia: Fast, Daniel