that is known

USAGE SUMMARY

The phrase "that is known" is correct and usable in written English.
It can be used to refer to information or facts that are widely recognized or accepted. Example: "The theory of evolution is a scientific concept that is known to explain the diversity of life on Earth."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

58 human-written examples

In Albany, that is known as campaign fodder.

The New York Times

I just don't have one that is known.

The New York Times

brand is to build an athletic program that is known, and that means football," Mitchell said.

The New York Times - Magazine

Such rapid improvement would extend a trend that is known as Moore's law.

The New York Times

Another is to select a wine that is known in the oldest vintage offered.

The New York Times - Travel

The more that is known about underlying causes, the better this worldwide crisis be addressed".

The Guardian

Opus is another company that is known for being a perfectionist about design consistency, he said.

The New York Times

"There is no secret that is known to 30 bureaucrats," Professor Coffee added.

The New York Times

"This is one of the oldest motives that is known," Ms. Donnelly said.

The New York Times

"There was no more effective form of natural selection that is known," says Ebers.

The Guardian

From the little that is known publicly, Mr. Hanssen lived modestly.

The New York Times

Expert writing Tips

Best practice

When employing the phrase "that is known", ensure the subject is clearly defined to avoid ambiguity and maintain clarity in your writing.

Common error

Avoid overusing passive constructions with "that is known". Instead, consider active voice alternatives to make your writing more direct and engaging. For example, instead of "It is known that...", write "Researchers have shown that...".

Linguistic Context

The phrase "that is known" functions primarily as a relative clause modifying a preceding noun or concept. It serves to emphasize the established or recognized nature of the information being presented. As Ludwig AI confirms, it is correct and usable in written English.

Expression frequency: Common

Frequent in

News & Media

49%

Science

39%

Encyclopedias

2%

Less common in

Huffington Post

10%

Wiki

1%

Formal & Business

0%

Ludwig's WRAP-UP

In summary, "that is known" is a grammatically sound and frequently used phrase to indicate information already established or widely accepted. According to Ludwig AI, it is correct and usable in written English. It appears across diverse sources, notably News & Media and Science, marking its adaptability in both formal and informal contexts. When writing, remember to clearly define the subject and consider active voice alternatives for a direct tone. While alternatives like "that is recognized" or "that is understood" offer variety, "that is known" effectively validates and reinforces statements.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

that is recognized

Focuses on formal acknowledgment or awareness of something.

that is understood

Emphasizes comprehension and acceptance of a concept.

that is acknowledged

Highlights acceptance or admission of something, often formally.

that is established

Stresses the confirmed or proven nature of information.

that is well-documented

Indicates thorough recording and evidence supporting the information.

that is widely accepted

Highlights broad agreement and belief in something.

that is common knowledge

Implies information is generally known and doesn't require specific expertise.

that is public knowledge

Focuses on the accessibility and availability of information to everyone.

that is no secret

Emphasizes the lack of confidentiality or hidden nature of something.

that is already known

Points out that the information is not new or surprising.

FAQs

How can I use "that is known" in a sentence?

The phrase "that is known" is typically used to introduce or refer to information that is widely accepted or established. For instance, "The Earth is round, "that is known"."

What are some alternatives to using "that is known"?

Alternatives include phrases like "that is recognized", "that is understood", or "that is established", which can provide similar meaning while varying your sentence structure.

Is it redundant to say "that is widely known"?

While "that is widely known" isn't grammatically incorrect, ""that is known"" already implies a degree of common knowledge, so adding "widely" might be redundant. Choose the phrasing that best fits the specific context and emphasis you want to convey.

What's the difference between "that is known" and "as is known"?

"That is known" usually introduces or refers back to a specific fact or piece of information. "As is known" generally precedes a broader statement or principle that is already understood or accepted.