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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
key person
Grammar usage guide and real-world examplesUSAGE 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
Alternative expressions(20)
instrumental person
essential person
pivotal person
main contributor
central figure
point person
focal person
nodal person
principal person
features person
key individual
central person
consultations person
key contact
lead person
designated authority
fundamental person
substantial person
coordinator
main point of contact
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
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
"Of course George was the key person," Coppola admits.
News & Media
the professional midwife is a key person for promoting maternal and family health.
Science
When he introduces Robert to a friend, he always says, "This is Robert, the key person".
News & Media
He is a key person in certain networks, so he is linked to that generation.
News & Media
"During the election campaign, Ashraf Ghani came here and told Dostum: 'You are a key person'.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
13 human-written examples
I'm just a more low-key person".
News & Media
"I'm a low-key person and I just want to make some tunes, nothing else".
News & Media
She seemed baffled by my invitation, explaining, "I'm a pretty low-key person".
News & Media
But we both already knew that she was a low-key person and hard to read.
News & Media
"I'm just a low-key person.
News & Media
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.
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.
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.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
instrumental person
Focuses on the person's role in achieving a specific outcome.
essential person
Highlights the person's necessity for the success or operation of something.
pivotal person
Emphasizes the person's critical role in a turning point or significant event.
critical individual
Underscores the person's importance and indispensability.
main contributor
Focuses on the person's significant contributions to a project or endeavor.
lead figure
Indicates the person's prominent role and influence.
central figure
Highlights the person's position at the center of events or activities.
go-to person
Suggests the person is the first choice for assistance or information.
point person
Implies the person is the main contact or representative.
linchpin
Highlights the individual's critical function in holding all elements together.
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.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested