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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
it's common knowledge that
Grammar usage guide and real-world examplesUSAGE SUMMARY
'it's common knowledge that' is a correct and usable expression in written English.
It is commonly used to introduce a fact that is widely known, usually within a specific field or particular group. For example, "It's common knowledge that cats love to nap in the sun."
✓ Grammatically correct
News & Media
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
53 human-written examples
It's common knowledge that Shakespeare's plays were first performed with all-male casts; it wasn't until around 1660 that a female actor was used.
News & Media
By Hilton Als It's common knowledge that Shakespeare's plays were first performed with all-male casts; it wasn't until around 1660 that a female actor was used.
News & Media
It's common knowledge that the odds are heavily stacked in the house's favor.
News & Media
It's common knowledge that the Tories don't want electoral reform.
News & Media
It's common knowledge that newspapers are closing down.
News & Media
In the world of design, it's common knowledge that Anthony Baratta fears no color.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
5 human-written examples
It was common knowledge that Anna's dreams were haunted by a disembodied pair of trousers she called Mr. Pants.
News & Media
However, it was common knowledge that McClaren was the FA's second choice behind the Brazilian Luiz Felipe Scolari.
News & Media
It is common knowledge that the Olympics are President Putin's pet project.
News & Media
She said it was common knowledge that A.I.G. was eliminating jobs in that division.
News & Media
"Back then, it was common knowledge that everyone was getting high," said Ms. Forbes, a photographer.
News & Media
Expert writing Tips
Best practice
Use "it's common knowledge that" to introduce facts or assumptions that are widely accepted within a specific context or community. Be mindful of your audience and ensure the information truly qualifies as common knowledge for them.
Common error
Avoid using "it's common knowledge that" for niche or specialized information that may not be widely known by your intended audience. Overusing this phrase can undermine your credibility if the 'common knowledge' is not actually common.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "it's common knowledge that" functions as an introductory expression used to present information presumed to be widely known or accepted. It sets the stage for a statement that the speaker believes requires no further explanation or justification. As Ludwig AI confirms, this is a valid and usable expression.
Frequent in
News & Media
98%
Wiki
1%
Science
1%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "it's common knowledge that" is a widely used phrase for introducing information presumed to be generally known. As Ludwig AI confirms, it's a valid expression suitable for various contexts, primarily in News & Media. It's essential to ensure that what you present as common knowledge truly is, to avoid alienating or misleading your audience. Alternatives like "it is widely known that" and "everyone knows that" offer similar meanings with slight variations in tone and emphasis.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
it is widely known that
Replaces "common knowledge" with "widely known", emphasizing the breadth of awareness.
it's a given that
Presents a fact as something that can be assumed without question.
it is understood that
Implies a level of implicit agreement or awareness.
it is generally accepted that
Focuses on the acceptance of a fact or idea, rather than just awareness.
it's no secret that
Similar to "everyone knows", but with a slightly more emphatic tone.
everyone knows that
Uses a more direct and informal tone to indicate shared knowledge.
as everyone is aware
Directly addresses the audience and assumes their knowledge of the fact.
it goes without saying that
Indicates that something is so obvious it need not be stated.
it's an open secret that
Suggests the information is technically not public, but widely suspected or known.
the word on the street is that
Implies that information is circulating through informal channels.
FAQs
How can I use "it's common knowledge that" in a sentence?
You can use "it's common knowledge that" to introduce a statement that is generally accepted as true. For instance, "It's common knowledge that the Earth revolves around the Sun".
What are some alternatives to saying "it's common knowledge that"?
Alternatives include "it is widely known that", "everyone knows that", or "it is generally accepted that", depending on the context.
When is it appropriate to use "it's common knowledge that"?
Use "it's common knowledge that" when introducing information that is widely understood and accepted within a specific group or the general public. Verify that the information is indeed common knowledge for your intended audience to avoid misunderstandings.
What's the difference between "it's common knowledge that" and "I think that"?
"It's common knowledge that" implies a shared understanding or accepted fact, while "I think that" expresses a personal opinion or belief. Using the former suggests the statement is objectively true and widely recognized, while the latter acknowledges subjectivity.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested