as we know

USAGE SUMMARY

The phrase "as we know" is correct and can be used in written English.
It is commonly used to introduce facts that are commonly accepted as true. For example: "As we know, the sun rises in the east."

✓ Grammatically correct

News & Media

Academia

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

"So far as we know".

The New Yorker

As we know, that didn't happen".

The New York Times

As we know, it has not.

The Economist

Just not as we know it.

Independent

And, as we know, he always triumphs.

Independent

As we know, everything is connected.

The New York Times - Arts

As far as we know.

The New York Times

That's as much as we know.

Cornell University

As we know, this did not happen.

Columbia University

The ban, as we know, was ignored.

Stanford University

As we know, the bubble collapsed.

University of California, Berkeley

Expert writing Tips

Best practice

Use "as we know" to introduce information that your audience is likely already familiar with, creating a sense of shared understanding and connection.

Common error

Avoid starting too many sentences with "as we know" in formal contexts. While useful, overuse can make your writing sound repetitive and less authoritative. Consider varying your phrasing.

Linguistic Context

As we know functions as a discourse marker, serving to connect a statement with previously shared knowledge. It prompts recognition of common ground between the speaker and the audience, creating a sense of shared understanding. Ludwig AI confirms its grammatical correctness.

Expression frequency: Very common

Frequent in

News & Media

63%

Academia

21%

Science

16%

Less common in

Ludwig's WRAP-UP

In summary, "as we know" is a versatile phrase used to introduce facts or concepts that are commonly accepted as true. Ludwig AI confirms its grammatical correctness, and its frequent appearance across diverse sources—primarily news and media, academia, and science—demonstrates its widespread applicability. While useful for establishing common ground, writers should avoid overuse, particularly in formal contexts, to maintain clarity and avoid sounding repetitive. Alternatives such as "as is commonly known" or "it is well known that" can provide variety while serving the same purpose.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

as is commonly known

Emphasizes the widespread knowledge of a fact.

as everyone knows

Highlights that the information is universally known.

it is well known that

Formally introduces a widely accepted fact.

it's a known fact that

States that something is an established truth.

as you are aware

Directly addresses the listener or reader's presumed knowledge.

as you may know

Acknowledges the possibility that the listener or reader might already be aware.

we are all aware that

Emphasizes a collective understanding.

it is understood that

Indicates a general agreement or assumption.

it goes without saying

Implies that something is so obvious it need not be stated.

of course

Expresses that something is naturally or evidently known.

FAQs

How can I use "as we know" in a sentence?

You can use "as we know" to introduce a fact or piece of information that is generally accepted or understood. For example, "As we know, the Earth revolves around the sun."

What phrases are similar to "as we know"?

Similar phrases include "as is commonly known", "it is well known that", and "everyone knows".

Is it appropriate to use "as we know" in formal writing?

Yes, but use it sparingly. While grammatically correct, overuse of "as we know" can make your writing sound repetitive. In formal contexts, consider alternatives like "it is well established that".

What's the difference between "as we know" and "as we now know"?

"As we know" refers to information that is currently and generally known. "As we now know" implies that the information was not previously known but has since been discovered or revealed.