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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
expert in
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "expert in" is correct and usable in written English.
It can be used to describe someone who has a high level of knowledge or skill in a particular area or subject. Example: "She is an expert in environmental science and has published several papers on climate change."
✓ Grammatically correct
News & Media
Science
Formal & Business
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
56 human-written examples
"He was an expert in martial arts.
News & Media
But the expert in question denies this.
News & Media
Are you an expert in bees?
News & Media
I'm becoming an expert in poop.
News & Media
He was an expert in combat".
News & Media
"I'm an expert in Israeli law.
News & Media
You are an expert in Israeli intelligence.
News & Media
Ralph Adams Cram, architect, foremost Gothic expert in country.
News & Media
Well, an expert in alternative medicine.
News & Media
"I'm not an expert in raising kids.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
1 human-written examples
Experts in criminal profiling concurred.
News & Media
Expert writing Tips
Best practice
When describing someone's expertise, be specific about the area of knowledge or skill. Instead of saying "He is an expert", specify "He is an "expert in" data analysis".
Common error
Avoid claiming someone is an "expert in" everything. Focus on their demonstrated skills and knowledge in specific domains.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "expert in" functions as a descriptive phrase, specifically an adjectival phrase followed by a preposition. It modifies a noun (often a person) by indicating their proficiency or specialized knowledge within a particular field, as seen in Ludwig examples like "He was an expert in martial arts" or "She is an expert in Software Testing". Ludwig AI confirms its grammatical correctness.
Frequent in
News & Media
45%
Science
35%
Formal & Business
10%
Less common in
Wiki
7%
Reference
2%
Encyclopedias
1%
Ludwig's WRAP-UP
The phrase "expert in" is a common and grammatically correct way to describe someone with a high level of skill or knowledge in a specific field. Ludwig AI confirms its validity. As shown by the examples in Ludwig, it is frequently used in news, scientific, and business contexts to highlight proficiency and credibility. While versatile, it's best to be specific about the area of expertise and avoid overgeneralizations. Consider using alternatives like "proficient in", "skilled in", or "specialist in" for nuanced meanings. The phrase maintains a neutral to professional register, making it suitable for a wide range of writing styles.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
proficient in
Indicates a high degree of competence and skill in a specific area.
skilled in
Highlights practical ability and dexterity within a domain.
adept at
Suggests a natural talent or quickness in mastering a skill.
knowledgeable about
Emphasizes a deep understanding and awareness of a subject.
well-versed in
Implies extensive study and familiarity with a topic.
experienced with
Focuses on practical exposure and accumulated knowledge through practice.
specialist in
Highlights a narrow focus and deep understanding within a specific subfield.
authority on
Suggests recognized expertise and credibility within a field.
master of
Implies exceptional skill and control over a discipline.
competent in
Denotes sufficient skill or knowledge to perform tasks effectively.
FAQs
How can I use "expert in" in a sentence?
Use "expert in" to describe someone with a high level of knowledge or skill in a specific area. For example, "She is an "expert in" /s/renewable+energy and has advised governments on sustainable policies".
What are some alternatives to "expert in"?
You can use alternatives like "proficient in", "skilled in", or "knowledgeable about" depending on the context.
Is it correct to say "expert on" instead of "expert in"?
While both "expert in" and "expert on" are acceptable, "expert in" typically refers to a specific skill or field, whereas "expert on" refers to a broader topic or subject. Choose the preposition that best fits the intended meaning.
What's the difference between "specialist in" and "expert in"?
"Specialist in" suggests a focused area of expertise, often within a larger field. "Expert in" can imply a broader range of knowledge and experience but does not necessarily mean narrow focus as for "specialist in".
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested