Used and loved by millions

Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

MitStanfordHarvardAustralian Nationa UniversityNanyangOxford

key person

Grammar usage guide and real-world examples

USAGE SUMMARY

"key person" is correct and usable in written English.
You can use it when referring to someone who is important or influential in a particular situation or area. For example: "The CEO was the key person in the negotiations."

✓ Grammatically correct

News & Media

Science

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

47 human-written examples

The sampling took place via e-mail invitations, through personal contact or inviting a key person to ask colleagues.

Science

BMJ Open

"Of course George was the key person," Coppola admits.

News & Media

The New Yorker

the professional midwife is a key person for promoting maternal and family health.

Science

Midwifery

When he introduces Robert to a friend, he always says, "This is Robert, the key person".

News & Media

The New Yorker

He is a key person in certain networks, so he is linked to that generation.

"During the election campaign, Ashraf Ghani came here and told Dostum: 'You are a key person'.

News & Media

The Guardian
Show more...

Human-verified similar examples from authoritative sources

Similar Expressions

13 human-written examples

I'm just a more low-key person".

News & Media

The New York Times

"I'm a low-key person and I just want to make some tunes, nothing else".

She seemed baffled by my invitation, explaining, "I'm a pretty low-key person".

News & Media

The New York Times

But we both already knew that she was a low-key person and hard to read.

News & Media

Forbes

"I'm just a low-key person.

News & Media

Los Angeles Times
Show more...

Expert writing Tips

Best practice

When using "key person", ensure the context clearly establishes why the individual is essential. Providing specific examples of their contributions strengthens the impact of the phrase.

Common error

Avoid labeling someone a "key person" without providing evidence of their significance. Overuse dilutes the phrase's impact and can appear insincere. Instead, focus on highlighting their specific contributions or unique skills.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

81%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "key person" functions as a noun phrase, typically serving as a subject complement or object in a sentence. As supported by Ludwig AI, it identifies an individual who is essential or of primary importance within a specific context. The examples in Ludwig show it qualifying people in various professional and personal settings.

Expression frequency: Very common

Frequent in

News & Media

36%

Science

32%

Formal & Business

10%

Less common in

Academia

6%

Wiki

6%

Encyclopedias

0%

Ludwig's WRAP-UP

In summary, "key person" is a grammatically sound and frequently used noun phrase that identifies someone of significant importance or influence, as supported by Ludwig. Its primary function is to highlight an individual's crucial role, and it's generally employed in neutral to professional registers. To maximize its impact, ensure the context clearly justifies the individual's designation as essential and prevent overuse without substantive support. As Ludwig AI confirms, this phrase is both correct and widely applicable, making it a valuable tool for effective communication.

FAQs

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

You can use "key person" to identify someone crucial in a project, organization, or event. For example, "She was the "key person" in securing the deal."

What are some alternatives to "key person"?

Alternatives include "instrumental person", "essential person", and "pivotal person". The best choice depends on the specific context and the nuance you want to convey.

Is it better to say "key person" or "key individual"?

Both "key person" and "key individual" are acceptable. "Key person" is slightly more common, but "key individual" can be used for a more formal or neutral tone.

What does "key person" insurance mean?

"Key person" insurance is a life insurance policy a company takes out on an employee whose death would cause significant financial loss. It helps the company mitigate risks associated with losing that individual.

ChatGPT power + Grammarly precisionChatGPT power + Grammarly precision
ChatGPT + Grammarly

Editing plus AI, all in one place.

Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.

Source & Trust

81%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: