The difference between Fast and Quick

When used as nouns, fast means a train that calls at only some stations it passes between its origin and destination, typically just the principal stations, whereas quick means raw or sensitive flesh, especially that underneath finger and toe nails.

When used as adverbs, fast means in a firm or secure manner, securely, whereas quick means quickly.

When used as verbs, fast means to restrict one's personal consumption, generally of food, but sometimes other things, in various manners (totally, temporally, by avoiding particular items), often for religious or medical reasons, whereas quick means to amalgamate surfaces prior to gilding or silvering by dipping them into a solution of mercury in nitric acid.

When used as adjectives, fast means firmly or securely fixed in place, whereas quick means moving with speed, rapidity or swiftness, or capable of doing so.

Fast is also interjection with the meaning: short for "stand fast", a warning not to pass between the arrow and the target.

check bellow for the other definitions of Fast and Quick

Fast as an adjective (dated):

Firmly or securely fixed in place; stable.

Examples:

"That rope is dangerously loose. Make it fast!"
Fast as an adjective:

Firm against attack; fortified by nature or art; impregnable; strong.
Fast as an adjective (of people):

Steadfast, with unwavering feeling. (Now mostly in set phrases like .)
Fast as an adjective:

Moving with great speed, or capable of doing so; swift, rapid.

Examples:

"I am going to buy a fast car."
Fast as an adjective:

Causing unusual rapidity of play or action.

Examples:

"a fast racket, or tennis court; a fast track; a fast billiard table''; ''a fast dance floor"
Fast as an adjective (computing, of a piece of hardware):

Able to transfer data in a short period of time.
Fast as an adjective:

Deep or sound (of sleep); fast asleep (of people).
Fast as an adjective (of dyes or colours):

Not running or fading when subjected to detrimental conditions such as wetness or intense light; permanent.

Examples:

"All the washing has come out pink. That red tee-shirt was not fast."
Fast as an adjective (obsolete):

Tenacious; retentive.
Fast as an adjective (dated):

Having an extravagant lifestyle or immoral habits.

Examples:

"a fast woman"
Fast as an adjective:

Ahead of the correct time or schedule.

Examples:

"There must be something wrong with the hall clock. It is always fast."
Fast as an adjective (of photographic film):

More sensitive to light than average.

Fast as an adverb:

In a firm or secure manner, securely; in such a way as not to be moved; safe, sound .

Examples:

"Hold this rope as fast as you can."
Fast as an adverb (of sleeping):

Deeply or soundly .

Examples:

"He is fast asleep."
Fast as an adverb:

Immediately following in place or time; close, very near .

Examples:

"The horsemen came fast on our heels."
Fast as an adverb:

Quickly, with great speed; within a short time .

Examples:

"Do it as fast as you can."
Fast as an adverb:

Ahead of the correct time or schedule.

Examples:

"I think my watch is running fast."

Fast as a noun (British, rail transport):

A train that calls at only some stations it passes between its origin and destination, typically just the principal stations

Fast as a verb (intransitive):

To restrict one's personal consumption, generally of food, but sometimes other things, in various manners (totally, temporally, by avoiding particular items), often for religious or medical reasons.

Examples:

"Muslims fast during Ramadan and Catholics during Lent."

Fast as a noun:

The act or practice of abstaining from food or of eating very little food.
Fast as a noun:

The period of time during which one abstains from or eats very little food.

Examples:

"[[Lent]] and [[Ramadan]] are fasts of two [[religion]]s."

Quick as an adjective:

Moving with speed, rapidity or swiftness, or capable of doing so; rapid; fast.

Examples:

"I ran to the station – but I wasn't quick enough."

"He's a quick runner."
Quick as an adjective:

Occurring in a short time; happening or done rapidly.

Examples:

"That was a quick meal."
Quick as an adjective:

Lively, fast-thinking, witty, intelligent.

Examples:

"You have to be very quick to be able to compete in ad-lib theatrics."
Quick as an adjective:

Mentally agile, alert, perceptive.

Examples:

"My father is old but he still has a quick wit."
Quick as an adjective:

Of temper: easily aroused to anger; quick-tempered.
Quick as an adjective (archaic):

Alive, living.
Quick as an adjective (archaic):

Pregnant, especially at the stage where the foetus's movements can be felt; figuratively, alive with some emotion or feeling.
Quick as an adjective:

Of water: flowing.
Quick as an adjective:

Burning, flammable, fiery.
Quick as an adjective:

Fresh; bracing; sharp; keen.
Quick as an adjective (mining, of a [[vein]] of [[ore]]):

productive; not "dead" or barren

Quick as an adverb:

quickly
Quick as an adverb (colloquial):

with speed

Examples:

"Get rich quick."

"Come here, quick!"

Quick as a noun:

raw or sensitive flesh, especially that underneath finger and toe nails.
Quick as a noun:

plants used in making a quickset hedge
Quick as a noun:

The life; the mortal point; a vital part; a part susceptible to serious injury or keen feeling.
Quick as a noun:

quitchgrass

Examples:

"rfquotek Tennyson"
Quick as a noun (cricket):

A fast bowler.

Quick as a verb (transitive):

To amalgamate surfaces prior to gilding or silvering by dipping them into a solution of mercury in nitric acid.
Quick as a verb (transitive, archaic, poetic):

To quicken.

The difference between Fast and Quick

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