Fast | Definition of Fast by Webster's Online Dictionary

Fast and loose
now cohering, now disjoined; inconstant, esp. in the phrases to play at fast and loose, to play fast and loose, to act with giddy or reckless inconstancy or in a tricky manner; to say one thing and do another.

Fast and loose pulleys
(Mach.) two pulleys placed side by side on a revolving shaft, which is driven from another shaft by a band, and arranged to disengage and reëngage the machinery driven thereby. When the machinery is to be stopped, the band is transferred from the pulley fixed to the shaft to the pulley which revolves freely upon it, and vice versa. - Shak.

Hard and fast
(Naut.) so completely aground as to be immovable.

To make fast
(Naut.) to make secure; to fasten firmly, as a vessel, a rope, or a door.

adv.

In a fast, fixed, or firmly established manner; fixedly; firmly; immovably.

We will bind thee fast.

- Judg. xv. 13.

In a fast or rapid manner; quickly; swiftly; extravagantly; wildly; as, to run fast; to live fast.

Fast by
close or near to; near at hand.

He, after Eve seduced, unminded slunk
Into the wood fast by.

- Milton.

Fast by the throne obsequious Fame resides.

- Pope.

(Naut.) That which fastens or holds; especially, (Naut.) a mooring rope, hawser, or chain; - called, according to its position, a bow, head, quarter, breast, or stern fast; also, a post on a pier around which hawsers are passed in mooring.

Noun	1.	fast - abstaining from food Synonyms: fasting
Verb	1.	fast - abstain from certain foods, as for religious or medical reasons; "Catholics sometimes fast during Lent"
	2.	fast - abstain from eating; "Before the medical exam, you must fast"
Adj.	1.	fast - 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" Antonyms: slow - not moving quickly; taking a comparatively long time; "a slow walker"; "the slow lane of traffic"; "her steps were slow"; "he was slow in reacting to the news"; "slow but steady growth"
	2.	fast - (used of timepieces) indicating a time ahead of or later than the correct time; "my watch is fast" Antonyms: slow - (used of timepieces) indicating a time earlier than the correct time; "the clock is slow"
	3.	fast - at a rapid tempo; "the band played a fast fox trot" Antonyms: slow - at a slow tempo; "the band played a slow waltz"
	4.	fast - (of surfaces) conducive to rapid speeds; "a fast road"; "grass courts are faster than clay"
	5.	fast - firmly fastened or secured against opening; "windows and doors were all fast"; "a locked closet"; "left the house properly secured" Synonyms: barred, bolted, latched, locked, secured
	6.	fast - resistant to destruction or fading; "fast colors"
	7.	fast - unrestrained by convention or morality; "Congreve draws a debauched aristocratic society"; "deplorably dissipated and degraded"; "riotous living"; "fast women" Synonyms: debauched, degenerate, degraded, dissipated, dissolute, libertine, profligate, riotous
	8.	fast - hurried and brief; "paid a flying visit"; "took a flying glance at the book"; "a quick inspection"; "a fast visit" Synonyms: quick, flying
	9.	fast - securely fixed in place; "the post was still firm after being hit by the car" Synonyms: immobile, firm
	10.	fast - unwavering in devotion to friend or vow or cause; "a firm ally"; "loyal supporters"; "the true-hearted soldier...of Tippecanoe"- Campaign song for William Henry Harrison; "fast friends" Synonyms: truehearted, loyal, firm
Adv.	1.	fast - 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.	fast - firmly or tightly; "held fast to the rope"; "her foot was stuck fast"; "held tight" Synonyms: tight

1.	(body)	FAST - Federation Against Software Theft.
2.	(language)	FAST - Fortran Automatic Symbol Translator.

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