Long known

USAGE SUMMARY

The phrase "Long known" is correct and usable in written English.
It can be used to indicate that something has been recognized or acknowledged for a significant period of time. Example: "The benefits of regular exercise are long known, yet many still struggle to maintain a consistent routine."

✓ Grammatically correct

News & Media

Science

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Long known in Japanese cuisine, seaweed comes in many forms.

The New York Times - Food

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

Expert writing Tips

Best practice

When using "long known", ensure the context clearly indicates who has known the information for a long time. This adds clarity and strengthens the statement.

Common error

Avoid using "long known" for facts that are universally understood or self-evident. Reserve it for situations where the extended period of awareness adds significance.

Linguistic Context

The phrase "long known" functions as an adjective phrase modifying a noun, often implying shared or established knowledge. It is used to qualify a statement by highlighting its historical or prolonged recognition. Ludwig AI confirms its grammatical correctness and widespread usage.

Expression frequency: Very common

Frequent in

News & Media

42%

Science

30%

Academia

15%

Less common in

Formal & Business

7%

Encyclopedias

3%

Wiki

3%

Ludwig's WRAP-UP

The phrase "long known" is a versatile and grammatically sound way to express that something has been recognized or understood for a considerable period. As indicated by Ludwig AI, it's deemed correct and frequently appears in various contexts. Its primary function is to emphasize the established nature of a fact, theory, or practice, adding weight and credibility to the statement. While suitable for neutral to formal settings, it should be reserved for cases where the duration of awareness is significant. Alternatives like "well-established" or "widely recognized" can be used depending on the specific nuance you want to convey.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

Well-established

A more concise way of expressing something that has been known or used for a long time.

Long established

Similar to "well-established" but places more emphasis on the temporal aspect.

Established for a long time

Emphasizes the duration of establishment rather than the knowledge or awareness.

Recognized for many years

Highlights the recognition aspect over the state of being known.

Of long standing

More formal and emphasizes the duration of existence or validity.

Acknowledged for a long time

Highlights the continuous acknowledgment over an extended period.

Widely recognized

Focuses on the breadth of recognition rather than the length of time.

Of long duration

Emphasizes the length of time something has lasted or been in effect.

Historically recognized

Highlights that the recognition happened in the past.

Previously acknowledged

Focuses on the past act of acknowledgment.

FAQs

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

You can use "long known" to introduce a fact or concept that has been recognized or understood for a considerable period, as in "It is "long known" that regular exercise benefits health."

What phrases are similar in meaning to "long known"?

Alternatives include "well-established", "widely recognized", or "historically recognized" depending on the context.

Is it ever incorrect to use the phrase "long known"?

While grammatically correct, using "long known" might be redundant if the information is common knowledge or self-evident. Choose a different phrase if the extended awareness doesn't add specific importance.

What is the difference between "long known" and "commonly known"?

"Long known" emphasizes the duration of awareness, while "commonly known" focuses on how widespread the knowledge is. Something can be "commonly known" without being "long known", and vice-versa.