FAST

I. adjective Etymology: Middle English, from Old English fæst; akin to Old High German festi firm, Old Norse ~r, Armenian hast Date: before 12th century 1. firmly fixed , tightly shut , adhering firmly, not easily freed ; stuck , stable , firmly loyal , 3. characterized by quick motion, operation, or effect:, moving or able to move rapidly ; swift , taking a comparatively short time, imparting quickness of motion , accomplished quickly, agile of mind, conducive to rapidity of play or action, c. indicating in advance of what is correct, according to or being daylight saving time, contributing to a shortening of exposure time , acquired with unusually little effort and often by shady or dishonest methods , 4. securely attached , tenacious , 5. sound asleep, not easily disturbed, not fading or changing color readily, 7. wild , sexually promiscuous, resistant to change (as from destructive action or fading) , Synonyms: see: ~ II. adverb Date: before 12th century in a firm or fixed manner , in a sound manner ; deeply , 3. in a rapid manner ; quickly, in quick succession, in a reckless or dissipated manner, ahead of a correct time or schedule, close , near , III. intransitive verb Etymology: Middle English, from Old English fæstan Date: before 12th century to abstain from food, to eat sparingly or abstain from some foods, IV. noun Date: before 12th century the practice of ~ing, a time of ~ing, V. noun Etymology: alteration of Middle English fest, from Old Norse festr rope, mooring cable, from ~r firm Date: 15th century something that ~ens (as a mooring line) or holds a ~ening