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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
CEO of Professional Science Editing for Scientists @ prosciediting.com
has a command of
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "has a command of" is correct and usable in written English. You can use it to describe someone's proficiency or mastery of a language or skill. Example: She has a command of several languages, which helps her in her career. Alternative expressions include "is proficient in" and "has mastery of."
✓ Grammatically correct
News & Media
Encyclopedias
Science
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
17 human-written examples
Our commander-in-chief has a command of the English language.
News & Media
He has a command of politics that rivals some of the great New York party bosses.
News & Media
Supergrass has a command of a variety of pop styles, which it moves between with easy virtuosity.
News & Media
As Nathan, the composer, Mr. Eckert has a command of gesture that lets him fly from fear to fury and from dancing to dying in an instant.
News & Media
But he has a command of gesture that lets him fly from fear to fury and from dancing to dying in an instant.
News & Media
A Clue to the Exit by Edward St Aubyn I think Edward St Aubyn is the greatest living English novelist: he's funny, honest and has a command of the English language that is astonishing.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
38 human-written examples
"The staff have a command of their material.
News & Media
"They have to have a command of their medium and excellence of execution.
News & Media
He was phenomenally industrious as a researcher, and had a command of powerful, emotional narrative.
News & Media
Scelsi's methods were strange, but he had a command of narrative which no ghostwriter could have provided.
News & Media
Once you have a command of vinaigrette, revisit these traditional salads, which are exemplary when done right.
News & Media
Expert writing Tips
Best practice
Use "has a command of" when you want to emphasize a person's mastery or deep understanding of a subject, skill, or language. This phrase suggests more than just basic competence.
Common error
Avoid using "has a command of" when describing mere familiarity or basic knowledge. The phrase implies a high degree of proficiency and control, so it is not suitable for casual understanding.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "has a command of" functions as a verb phrase that indicates a high level of skill, knowledge, or control over a particular subject, language, or ability. Ludwig examples show it often describes expertise recognized by others.
Frequent in
News & Media
67%
Encyclopedias
17%
Science
16%
Less common in
Formal & Business
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "has a command of" is used to describe someone with a high level of proficiency or expertise, as determined by Ludwig's analysis. Primarily found in News & Media, Encyclopedia and Science contexts, this grammatically correct phrase can be replaced by options like "possesses mastery of" for a more formal tone. It's important to note that Ludwig confirms that "has a command of" suggests more than basic competence and shouldn't be used to describe mere familiarity. Overall, using this phrase accurately will enhance your writing by clearly indicating a person's significant capabilities.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
possesses mastery of
Replaces "has" with "possesses" and "command" with "mastery", emphasizing ownership of skill.
exhibits proficiency in
Uses "exhibits" and "proficiency" to highlight demonstrated competence.
demonstrates expertise in
Emphasizes a high level of skill and knowledge.
is skilled in
A more direct and concise way of expressing competence.
is adept at
Focuses on natural talent and ease in performing a task.
excels in
Highlights exceptional performance and ability.
is proficient in
A formal way to express competence in a particular area.
is versed in
Suggests deep knowledge and experience in a subject.
is competent in
Indicates a satisfactory level of skill and ability.
is knowledgeable about
Emphasizes having information and understanding about a subject.
FAQs
How can I rephrase "has a command of" to sound more formal?
For a more formal tone, consider using phrases like "possesses mastery of" or "exhibits proficiency in". These options add a layer of sophistication to your writing.
Is "has a command on" grammatically correct instead of "has a command of"?
No, the correct preposition to use with "command" in this context is "of". Using "on" is grammatically incorrect and should be avoided.
When is it appropriate to use "has a command of"?
It is appropriate when you want to emphasize someone's deep knowledge or exceptional skill in a particular area. It implies a higher level of expertise than simply knowing something.
What is the difference between "is proficient in" and "has a command of"?
While both phrases suggest competence, "has a command of" often implies a greater depth of understanding and control than "is proficient in". The former suggests a more innate or deeply ingrained skill.
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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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested