long known

USAGE SUMMARY

"long known" is correct and usable in written English.
You can use it to refer to something that has been known for a long time. For example, "The effects of smoking on human health have been long known."

✓ Grammatically correct

News & Media

Science

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

I've long known it.

The Guardian - Film

Doctors have long known this.

Harvard Business Review

Politicians have long known this.

The Guardian - Opinion

LPS is long known to activate Nrf240.

Nature

She has long known the dismal statistics.

The New York Times - Health

Major species were long known to be endangered.

Massachusetts Institute of Technology

Scientists had long known that many bacteria have outer membranes.

Stanford University

Racial M/T disparities have been long known.

Early Human Development

She has also long known how to break them.

The Times

Meteorologists have long known that two factors play crucial roles.

MIT Technology Review

Investigators have long known that the device failed.

The Guardian

Expert writing Tips

Best practice

Combine "long known" with specific examples or data to reinforce the claim that something has been understood for a considerable time, making your argument more persuasive.

Common error

Be cautious about implying that something is "long known" if its awareness is limited to a specific group or field. Overstating its universality can undermine your credibility.

Linguistic Context

The phrase "long known" typically functions as part of a verb phrase, often appearing in the passive voice. It modifies a statement by emphasizing that the information or concept has been recognized or understood for a considerable duration. Ludwig AI confirms its correct usage.

Expression frequency: Very common

Frequent in

News & Media

42%

Science

30%

Academia

15%

Less common in

Formal & Business

5%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, "long known" is a phrase used to indicate that something has been recognized or understood for a considerable period. Ludwig AI confirms that the phrase is grammatically correct and frequently used in English. It appears most often in news and media, science, and academic contexts. When using this phrase, it's important to ensure that the context clearly indicates who possesses this knowledge and for approximately how long. Alternatives like "previously recognized" or "historically established" can be used depending on the specific nuance you want to convey. Avoid overstating the universality of the knowledge, as this can undermine your credibility.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

long-standing knowledge

Modifies "knowledge" with "long-standing", emphasizing the duration of the awareness.

previously recognized

Replaces "known" with "recognized", focusing on the acknowledgement of something over time.

for a long time it has been understood

Expands the phrase to express the understanding over an extended period, shifting the focus to comprehension.

common knowledge for some time

Indicates that the information is not only known but also commonly possessed, adding a communal aspect.

historically established

Emphasizes the historical aspect of the knowledge or fact.

well-established fact

Highlights that the matter is not just known but also confirmed or proven.

widely acknowledged

Indicates that the information is broadly accepted among a certain group or community.

has been known for ages

Emphasizes the length of time the information has been known, using the word "ages" to convey a very long duration.

time-honored understanding

Replaces the concept of knowing with a time-honored understanding, which may imply that it is related to custom or tradition.

a truth universally accepted

Uses a more literary and emphatic approach, suggesting widespread agreement on a particular truth.

FAQs

How can I use "long known" in a sentence?

You can use "long known" to indicate that a fact or concept has been recognized or understood for a considerable period. For example, "It has been "long known" that exercise is beneficial for health".

What are some alternatives to "long known"?

Alternatives include "previously recognized", "historically established", or "well-established fact", depending on the specific nuance you want to convey.

Is it more appropriate to use "long known" or "widely known"?

"Long known" emphasizes the duration of awareness, while "widely known" emphasizes the breadth of awareness. Use "long known" when the length of time is relevant to your point.

What is the grammatical function of "long known" in a sentence?

"Long known" typically functions as part of a verb phrase, often in the passive voice, indicating that something has been recognized for an extended period.