3 a : characterized by quick motion, operation, or effect: (1) : moving or able to move rapidly : swift a fast horse. (2) : taking a comparatively short time a fast race. (3) : imparting quickness of …

fast 2 1. The act or practice of abstaining from or eating very little food. 2. A period of such abstention or self-denial.

Fast definition, moving or able to move, operate, function, or take effect quickly; quick; swift; rapid: a fast horse;a fast pain reliever;a fast thinker. See more.

1 moving, proceeding, or acting with great speed. the fast pace of construction resulted in our new house being done ahead of schedule. Synonyms for fast. blistering, breakneck, breathless, brisk, dizzy, fleet,

fast definition: 1. moving or happening quickly, or able to move or happen quickly: 2. If your watch or clock is…. Learn more.

FAST meaning: 1 : moving or able to move quickly; 2 : happening quickly taking a short amount of time

Feb 28, 2005 · fast. A girl or guy who is quick to engage in sexual activities. Damn that slut was fast. Get the fast mug. an adolescent girl who acts much older than she is by dressing like a …

See definition of fast on Dictionary.com. adj. speedy. adj. fixed, immovable. adj. immoral, promiscuous. adv. speedily. adv. fixedly. noun abstention from eating. verb go without food.

FAST: Field's Automated Sales Technology: FAST: Fleet AAW System Trainer: FAST: Firefighters Accident & Sickness Trust: FAST: Friends At Socializing Time (Woodgrove Primary School Singapore) FAST: Frame-based ATM over SONET Transport: FAST: Foundation for the Advancement of Science & Technology, Inc. (Makati City, Philippines) FAST: Future Aircrew …

What is Fast, Fasting? Definition and meaning:Fast, Fasting Abstinence from food and/or drink as an element of private or public religious devotion.