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FAST definition: moving or able to move, operate, function, or take effect quickly; quick; swift; rapid: a fast pain reliever; See examples of fast used in a sentence.

Intermittent fasting is a pattern of eating based on time limits. For a set time of hours or days, you eat a typical diet. At the end of the set time, you switch to very few or no calories, called …

fast, rapid, swift, fleet, quick, speedy, hasty, expeditious mean moving, proceeding, or acting with celerity. fast and rapid are very close in meaning, but fast applies particularly to the thing that …

Grammar Fast, quick or quickly? Fast and quick mean moving with great speed. Fast is both an adjective and an adverb. Quick is an adjective and the adverb form is quickly. …

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May 18, 2016 · Today we are launching fast.com, a simple-to-use website to help you see how fast your Internet connection is, whether on mobile or broadband, anywhere in the world. And …

FAST protocol, an adaptation of the FIX protocol, optimized for streaming FAST TCP, a TCP congestion avoidance algorithm Facilitated Application Specification Techniques, a team …

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