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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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thoroughly fluent

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "thoroughly fluent" is correct and usable in written English.
It can be used to describe someone who has a deep and comprehensive command of a language. Example: "After living in Spain for several years, Maria became thoroughly fluent in Spanish, able to converse effortlessly with native speakers."

✓ Grammatically correct

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

2 human-written examples

First, scripture is a language in which these authors are thoroughly fluent.

Science

SEP

A visit to France in 1820 had made Mill thoroughly fluent in the language, and he became a life-long student of French thought and history.

Science

SEP

Human-verified similar examples from authoritative sources

Similar Expressions

58 human-written examples

This is a challenging thesis, presented with a masterly array of sources across a busy century, at once thought-provoking and thoroughly informed; the prose is fluent and zestful, and the arguments are constructed with a fine level of critical observation.

First, the manuscript has been thoroughly revised and proofread by a fluent English speaker.

Science

eLife

Besides being fluent in English, French and German, these women knew the region thoroughly, and patiently tended to our motley group, mostly Spaniards but also a French couple, eight Britons, four Germans, one Japanese and four other Americans besides ourselves.

Education: Fluent in German.

News & Media

Independent

His English is fluent.

News & Media

The New Yorker

Now he is fluent.

News & Media

The New York Times

I am fluent.

News & Media

The New Yorker

They have fluent German.

News & Media

The New York Times

He speaks fluent English.

News & Media

The Economist
Show more...

Expert writing Tips

Best practice

Use "thoroughly fluent" to emphasize a deep and comprehensive command of a language or skill. This suggests a level of proficiency that goes beyond basic fluency.

Common error

Avoid using "thoroughly fluent" when "fluent" alone suffices. The intensifier should only be added when you want to specifically highlight the depth and comprehensiveness of someone's fluency, not just their ability to speak or understand.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

89%

Authority and reliability

4.3/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "thoroughly fluent" functions as an adjectival phrase modifying a noun (typically a person) to describe their language proficiency. As Ludwig AI confirms, it is grammatically correct. The word "thoroughly" intensifies the meaning of "fluent."

Expression frequency: Rare

Frequent in

News & Media

50%

Science

50%

Formal & Business

0%

Less common in

Academia

0%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, "thoroughly fluent" is a grammatically sound phrase used to emphasize a deep and comprehensive command of a language. As Ludwig AI confirms, its meaning is clear and acceptable in written English. While not overly common, it finds its place in both News & Media and Science contexts. To enhance your writing, use "thoroughly fluent" when you want to highlight a level of proficiency beyond basic fluency, and consider alternatives like "completely fluent" or "fully fluent" for similar effect.

FAQs

How can I use "thoroughly fluent" in a sentence?

You can use "thoroughly fluent" to describe someone's language proficiency, such as "After years of immersion, she became thoroughly fluent in Japanese". It emphasizes a deep and comprehensive command of the language.

What's the difference between "fluent" and "thoroughly fluent"?

"Fluent" indicates a general ability to speak and understand a language. "Thoroughly fluent" implies a deeper, more comprehensive mastery, suggesting near-native proficiency.

Are there synonyms for "thoroughly fluent"?

Yes, you can use phrases like "completely fluent", "fully fluent", or "highly proficient" to convey a similar meaning, depending on the specific nuance you want to emphasize.

In what contexts is "thoroughly fluent" most appropriate?

Use "thoroughly fluent" in contexts where you want to highlight an exceptional level of language proficiency, such as academic settings, professional evaluations, or when describing someone's language skills in detail.

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Source & Trust

89%

Authority and reliability

4.3/5

Expert rating

Real-world application tested

Most frequent sentences: