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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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be cool

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "be cool" is correct and usable in written English.
It is typically used to suggest someone should remain calm, relaxed, or composed in a situation. Example: "When you meet her parents, just be cool and don't overthink it."

✓ Grammatically correct

News & Media

Wiki

Human-verified examples from authoritative sources

Exact Expressions

56 human-written examples

Now, that'd be cool".

News & Media

The New Yorker

Just be cool.

News & Media

The New Yorker

Wouldn't it be cool?

News & Media

The New Yorker

That will be cool".

News & Media

The New Yorker

Needs to be cool.

"I can't be cool.

News & Media

Independent

Wouldn't that be cool?

News & Media

The New Yorker
Show more...

Human-verified similar examples from authoritative sources

Similar Expressions

4 human-written examples

What could be cooler?

News & Media

The New Yorker

Mathias was cool.

News & Media

The New Yorker

Nerds are cool.

News & Media

The Economist

So: Messages is cool.

News & Media

The New York Times

Expert writing Tips

Best practice

When using "be cool" in dialogue, consider the speaker's personality and the overall tone of the scene. This phrase can convey anything from genuine reassurance to sarcastic dismissal, depending on the context.

Common error

Avoid using "be cool" in formal writing or professional settings. While widely understood, it can come across as too casual or informal for serious communication.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

83%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "be cool" primarily functions as an imperative, directing or advising someone to adopt a calm, composed, or nonchalant attitude. As Ludwig AI shows, it's used in direct commands or suggestions to influence behavior. This aligns with the typical use of imperative verbs in English.

Expression frequency: Very common

Frequent in

News & Media

36%

Wiki

27%

Science

10%

Less common in

Formal & Business

10%

Encyclopedias

5%

Reference

5%

Ludwig's WRAP-UP

In summary, the phrase "be cool" is a common and generally accepted imperative urging someone to maintain composure or calmness. As indicated by Ludwig AI, it's grammatically sound and widely used, particularly in informal contexts and across News & Media. While versatile, its use should be carefully considered in more formal settings. Alternatives like "/s/stay+calm" or "/s/keep+calm" may be more appropriate depending on the situation. Ludwig's examples showcase the phrase's diverse applications, from direct commands to subtle suggestions for emotional regulation.

FAQs

How can I use "be cool" in a sentence?

"Be cool" is often used as an imperative, urging someone to remain calm or collected. For example: "Just /s/stay+calm and /s/be+cool, everything will be alright".

What does "be cool" mean in slang?

In slang, "be cool" can mean to remain calm, but it can also express approval or agreement. It can be similar to saying "okay" or "alright". For example, someone might say, "Is it okay if I borrow your pen?", and you could reply, "/s/Be+cool".

What can I say instead of "be cool"?

You can use alternatives like "/s/stay+calm", "/s/keep+calm", or "/s/relax" depending on the context. Other options include "/s/take+it+easy" or "/s/chill+out" for a more casual tone.

When is it inappropriate to use "be cool"?

It's generally inappropriate to use "be cool" in formal or professional settings, as it can sound too casual. Avoid using it in academic writing, business communications, or when addressing someone in a position of authority.

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Source & Trust

83%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: