he knows everything

USAGE SUMMARY

The phrase "he knows everything" is correct and usable in written English.
You can use it to describe someone who is perceived to have extensive knowledge or understanding about various topics. Example: "In our discussions, it's clear that he knows everything about the subject matter, making him an invaluable resource for the team."

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

56 human-written examples

He knows everything.

The New Yorker

He knows everything about opera".

The New York Times

He knows everything about the show.

Independent

He knows everything that's to be known in the FBI.

The Economist

"He knows everything to the smallest detail.

The Guardian - Sport

He knows everything that's going on.

The Guardian - Sport

"He knows everything you'd want to know.

The New York Times - Sports

"He knows everything," San Antonio said of Guardiola.

The New York Times - Sports

He knows everything about being a Toyota salesman.

The Guardian - Books

"He knows everything about every subject," he said.

The New York Times

Holbrooke could become a newspaper editor, since he knows everything.

The Guardian

Expert writing Tips

Best practice

Use the phrase "he knows everything" to describe someone who has a comprehensive understanding of a particular subject or a wide range of topics. This phrase is best suited for informal contexts.

Common error

Avoid using "he knows everything" in formal or academic writing. Opt for more precise and nuanced language like "he possesses extensive knowledge" or "he demonstrates a comprehensive understanding".

Linguistic Context

The phrase "he knows everything" primarily functions as a descriptive statement, attributing comprehensive knowledge to a subject. It is straightforward and commonly used. As Ludwig AI confirms, it is grammatically correct.

Expression frequency: Very common

Frequent in

News & Media

95%

Formal & Business

3%

Wiki

1%

Less common in

Science

0.5%

Encyclopedias

0.3%

Reference

0.2%

Ludwig's WRAP-UP

In summary, the phrase "he knows everything" is a grammatically sound and frequently used expression to describe someone with extensive knowledge. Ludwig AI analysis confirms its common usage across diverse sources, primarily within the News & Media. While effective in informal and neutral registers, more formal contexts may benefit from alternatives such as "he possesses extensive knowledge" or "he demonstrates a comprehensive understanding". This phrase serves to express admiration and respect to someone with extensive knowledge.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

he is all-knowing

Employs a compound adjective to indicate complete knowledge.

he is omniscient

Uses a formal adjective to describe unlimited knowledge instead of a common phrase.

he has a complete understanding

Focuses on understanding as a form of complete knowledge.

he possesses comprehensive knowledge

Replaces the simple verb with a more formal noun phrase.

he is well-informed about everything

Adds specificity by indicating awareness across multiple subjects.

he is acquainted with all the facts

Highlights familiarity with factual information.

he has mastered every detail

Implies a high level of expertise and control over information.

he is versed in all aspects

Suggests deep knowledge through study or experience.

he is familiar with every nuance

Emphasizes attention to subtle details.

he has inside knowledge of everything

Indicates knowledge that is not widely accessible.

FAQs

How can I use "he knows everything" in a sentence?

You can use "he knows everything" to indicate that someone possesses a comprehensive understanding or vast knowledge about a subject. For example: "Ask John about the project; "he knows everything"."

What is a less informal way to say "he knows everything"?

Alternatives include phrases like "he is extremely knowledgeable", "he possesses extensive expertise", or "he has a comprehensive understanding". These options are more suitable for professional or academic contexts.

Is it correct to say "he knows everything"?

Yes, it is grammatically correct and commonly used, especially in informal settings. However, its appropriateness depends on the context. In formal situations, more precise language might be preferred.

What does it mean when someone says "he knows everything"?

When someone says "he knows everything", they typically mean that the person in question has a very broad or deep understanding of a particular subject or many subjects in general. It's often a form of admiration or respect for their knowledge.