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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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in under

Grammar usage guide and real-world examples

USAGE SUMMARY


"In under" is an informal phrase and is not usually used in written English. It is more common to use "within" or "in less than" instead. For example, "We need to get this finished in under an hour."

News & Media

Human-verified examples from authoritative sources

Exact Expressions

49 human-written examples

arrives in under seven seconds.

News & Media

The New York Times

Fight stopped in under two minutes.

News & Media

The New Yorker

In under an minute.

News & Media

The New Yorker

In under the shelter.

News & Media

The New Yorker

All in under four hours.

News & Media

The New York Times

Wraps up in under 20 seconds.

News & Media

Independent
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Human-verified similar examples from authoritative sources

Similar Expressions

10 human-written examples

Malnutrition prevalence in under-fives is 27%.

News & Media

The Guardian

"Being 25-0 doesn't happen at any level, in Under-18 soccer, in Under-18 volleyball.

We strongly believe in "under-promising and over-deliving".

News & Media

TechCrunch

This may result in under-reporting.

Great run-in under pressure.

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Expert writing Tips

Best practice

While "in under" is acceptable in informal contexts, consider using more precise alternatives like "within" or "in less than" for formal writing to enhance clarity and professionalism.

Common error

Avoid using "in under" in academic papers or business reports. Opt for phrases like "within" or "in a period less than" to maintain a formal tone and avoid ambiguity.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

84%

Authority and reliability

3.8/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "in under" functions as a prepositional modifier, typically indicating that an action, event, or process occurs within a certain timeframe or below a specific limit. As Ludwig AI reports, it's an informal phrase.

Expression frequency: Common

Frequent in

News & Media

88%

Wiki

4%

Science

4%

Less common in

Formal & Business

0%

Academia

0%

Encyclopedias

0%

Ludwig's WRAP-UP

The phrase "in under" is a prepositional phrase used to denote that something occurs within a certain time frame or below a specific limit. While commonly used, as shown by Ludwig's examples, it is generally considered informal. Ludwig AI suggests opting for alternatives like "within" or "in less than" in more formal contexts. The primary contexts where this phrase appears are news and media sources. While acceptable in casual conversation, it's advisable to use more precise language for academic or professional writing to ensure clarity.

FAQs

What does "in under" mean?

The phrase "in under" generally means within a specified duration or below a certain threshold. For example, "The task was completed in under an hour" means it took less than one hour.

When is it appropriate to use "in under"?

It's appropriate in casual conversation or informal writing. However, in formal or academic contexts, it's better to use more precise and formal alternatives such as "within" or "in less than".

Is "in under" grammatically correct?

While commonly used, "in under" isn't considered strictly grammatically correct in formal English. It's a more colloquial way of expressing that something is completed or achieved before a certain time or quantity.

What are some alternatives to "in under" that I can use?

Depending on the context, you can use alternatives like "within", "in less than", or simply "less than". For example, instead of "The project was finished in under two weeks", you can say "The project was finished within two weeks".

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Source & Trust

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Authority and reliability

3.8/5

Expert rating

Real-world application tested

Most frequent sentences: