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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

MitStanfordHarvardAustralian Nationa UniversityNanyangOxford

the key

Grammar usage guide and real-world examples

USAGE SUMMARY

"the key" is a correct and usable part of a sentence in written English.
You can use it to refer to a physical object such as a key, or to a metaphorical object that is needed to resolve a problem or to unlock a solution. For example: "We found the key to success!".

✓ Grammatically correct

News & Media

Wiki

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Size is the key.

News & Media

The New Yorker

Simplicity is the key.

News & Media

The New York Times

"Iran is the key.

News & Media

The New York Times

He had the key.

News & Media

The New Yorker

Remember the key statistic.

News & Media

The Economist

That's the key point.

News & Media

Independent

"You've got the key.

News & Media

The New Yorker

Colourful is the key.

News & Media

The Guardian

Expectations are the key.

News & Media

The New York Times

That's the key thing".

Protection is the key.

News & Media

The New York Times
Show more...

Expert writing Tips

Best practice

When using "the key", ensure the context clearly indicates what it unlocks or enables. This avoids ambiguity and strengthens your message.

Common error

Avoid using "the key" as a generic filler phrase. If you can replace it with a more specific noun that directly relates to unlocking a solution or understanding, your writing will be more impactful.

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

4.6/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "the key" functions as a noun phrase, often serving as a subject complement or object of a preposition. Ludwig examples showcase its use in identifying essential elements or principles, confirming its role in highlighting importance.

Expression frequency: Very common

Frequent in

News & Media

45%

Wiki

25%

Formal & Business

10%

Less common in

Science

10%

Encyclopedias

5%

Reference

5%

Ludwig's WRAP-UP

In summary, "the key" is a very common and grammatically sound phrase used to highlight the most essential aspect of something. Ludwig AI confirms this, demonstrating its wide usage across various contexts, predominantly in news and media. To enhance your writing, ensure clarity by specifying what "the key" unlocks and avoid generic use. Consider alternatives like "the crucial element" or "the vital aspect" for more precise communication. Remembering these points will help you harness the power of "the key" effectively.

FAQs

How can I use "the key" in a sentence?

Use "the key" to indicate the most important element, factor, or aspect in a particular situation. For example, "Teamwork is "the key" to our success" or "Understanding the data is "the key" to making informed decisions".

What is a good alternative to "the key"?

Depending on the context, you could use phrases like "the crucial element", "the vital aspect", or "the essential factor".

Is it better to say "a key" or "the key"?

Use "the key" when referring to a specific, identifiable key or crucial element already understood in context. Use "a key" when introducing a key or crucial element for the first time, or when referring to any key in a general sense.

What does it mean when someone says something is "key"?

When something is described as "key", it means it is essential, vital, or of utmost importance. It suggests that this element is crucial for success or understanding a particular situation.

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Source & Trust

83%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Most frequent sentences: