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You are here: Home / English lessons / Difference between QUICK, QUICKLY and FAST

Difference between QUICK, QUICKLY and FAST

4th April 2019 by Andrew

What is the difference between “quick“, “quickly” and “fast” in English?

These 3 words are related to speed or time. They are similar but there are a few important differences. Let’s look at each one in more detail.

Quick

“quick” is an English adjective. It gives us more information about a noun (person, place or thing).
Meaning: “quick” describes something that happens in a short time.

Examples:
We had a quick drink before going home.
drinks in bar


Let’s have a quick meeting to discuss recruitment.
Jane gave Mark a quick kiss.

Quickly

“quickly” is an adverb and it therefore gives us more information about a verb.

There are two definitions and uses of “quickly“:

1)  At high speed
Examples:
I don’t understand. You’re talking too quickly.

He’s running quickly.

man running
by stockimages | FreeDigitalPhotos.net

2) After a short time
Examples:
He replied quickly to my letter.
The ambulance arrived quickly after the accident.

ambulance

Fast

“fast” is an adjective and adverb.

Fast as an adjective

As an adjective, the meaning is to describe a noun (something or someone) that moves at high speed.
Example: I have a fast car.

Fast as an adjective

“fast” is an irregular adverb. It describes a verb (action) that is happening at high speed.
Example: He is walking fast.

man walking with travel bag
by Ambro | FreeDigitalPhotos.net

Expressions with fast

fast food

fast food

Meaning: “fast food” is food that is prepared at high speed and in a short period of time.
Example: Fast food is bad for your health if you eat too much of it.

fast asleep

fast asleep

Meaning: To be completely asleep.
Example: The baby is fast asleep.

Common mistakes with “fast”

“fast” has the same spelling when it is an adjective and an adverb. We do not say “fastly” when it is an adverb.

Example:
He runs fast. correct
He runs fastly. wrong

We use “quick” to describe something that takes a short time. We do not use “fast” to describe something that takes a short time.

Example:
I had a quick conversation with Jane yesterday.  correct
I had a fast conversation with Jane yesterday.  wrong

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Reader Interactions

Comments

  1. Marie says

    10th December 2019 at 7:05 pm

    Well explained.

  2. Sonia says

    3rd November 2021 at 4:29 am

    Thank you. 😊

  3. Gerardo de Souza Zamudi Ocampo says

    20th January 2024 at 6:43 pm

    I was given this sentences in a test:
    Movies very “quickly”/”fast” became popular all over the world.
    The answer was supposed to be “quickly”, but I’m not sure why.

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