[ fast, fahst ]
/ fæst, fɑst /

adjective, fast·er, fast·est.

adverb, fast·er, fast·est.


a fastening for a door, window, or the like.

Nearby words

  1. fashoda incident,
  2. fasnacht,
  3. fassa,
  4. fassbinder,
  5. fassbinder, rainer werner,
  6. fast and furious,
  7. fast and loose,
  8. fast break,
  9. fast buck,
  10. fast casual


    play fast and loose. play(def 80).
    pull a fast one, Informal. to play an unfair trick; practice deceit: He tried to pull a fast one on us by switching the cards.

Origin of fast

before 900; Middle English; Old English fæst firm; cognate with Dutch vast, Old Norse fastr firm, German fest; akin to fast2

1, 2. fleet, speedy. See quick. 5. dissipated, dissolute, profligate, immoral; wild, prodigal. 8. secure, tight, immovable, firm. 9. inextricable. 13. faithful, steadfast. 14. enduring. 20. securely, fixedly, tenaciously. 22. recklessly, wildly, prodigally.

Can be confusedfast quick rapid swift (see synonym study at quick) Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for pull a fast one


/ (fɑːst) /




archery (said by the field captain to archers) stop shooting!

Word Origin for fast

Old English fæst strong, tight; related to Old High German festi firm, Old Norse fastr


/ (fɑːst) /


(intr) to abstain from eating all or certain foods or meals, esp as a religious observance


  1. an act or period of fasting
  2. (as modifier)a fast day
Derived Formsfaster, noun

Word Origin for fast

Old English fæstan; related to Old High German fastēn to fast, Gothic fastan

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for pull a fast one
Online Etymology Dictionary, © 2010 Douglas Harper

Idioms and Phrases with pull a fast one

pull a fast one

Also, put over a fast one. Engage in a deceitful practice or play an unfair trick. For example, He pulled a fast one when he gave me that fake employment record, or She tried to put over a fast one, but we found out in time to stop her. [Slang; c. 1920]


In addition to the idioms beginning with fast

  • fast and furious
  • fast and loose
  • fast buck
  • fast lane
  • fast track

also see:

  • get nowhere (fast)
  • hard and fast
  • pull a fast one
  • stand one's ground (fast)
  • thick and fast
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.