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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
previously known
Grammar usage guide and real-world examplesUSAGE SUMMARY
"previously known" is a correct and usable phrase in written English.
It is often used to indicate that something was known or established before a specific point in time. Example: The suspect, who was previously known for petty theft, was arrested for robbing a local convenience store.
✓ Grammatically correct
News & Media
Science
Alternative expressions(20)
previously identified
earlier recognized
already established
previously established
currently known
ever known
already known
previously retired
previously rated
previously owned
previously planned
previously acknowledged
formerly identified
previously understood
already understood
possessed prior understanding
knew beforehand
already been understood
had been understood
at last known
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
59 human-written examples
He was not previously known to police.
News & Media
These features were not previously known.
News & Media
Alterra was previously known as Assisted Living Services.
News & Media
Ready, in particular, for something I'd not previously known about.
News & Media
Nigerian peacekeepers were previously known for violating civilians' rights.
News & Media
None of the previously known sites were damaged, she said.
News & Media
The dramas are "The Ex List" (previously known as "Mythological X"), "Elemental" (previously known as "Eleventh Hour"), "The Mentalist," and "Harper's Island".
News & Media
He was previously known primarily for his successful modelling career.
News & Media
Previously known as Widowed Mother's Allowance.
News & Media
SCO was previously known as Caldera.
News & Media
Going.com was previously known as HeyLetsGo.
News & Media
Expert writing Tips
Best practice
When using "previously known", ensure the context clearly defines what it was known for and when that knowledge was established. Provide specific details to avoid ambiguity.
Common error
Avoid using "previously known" without specifying the context or timeframe. Without proper context, the phrase can become vague and leave the reader unsure of what was known and when.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "previously known" functions as an adverbial modifier describing the state of being known at an earlier time. It typically precedes a noun or noun phrase to specify that the information was already established. This aligns with Ludwig AI's assessment of the phrase's correctness and usability.
Frequent in
Science
37%
News & Media
35%
Wiki
5%
Less common in
Formal & Business
3%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "previously known" is a versatile and grammatically sound way to indicate that something was recognized or understood at an earlier time. As Ludwig AI confirms, it's widely used across diverse sources, particularly in Science and News & Media. When using "previously known", it's important to provide context to ensure clarity and avoid ambiguity. Alternatives like "formerly recognized" or "previously identified" can be used depending on the specific nuance you want to convey. Overall, the phrase is a reliable tool for providing background information and setting the stage for new insights.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
formerly recognized
Changes 'previously known' to 'formerly recognized', implying formal acknowledgment in the past.
previously identified
Replaces 'known' with 'identified', suggesting a more specific act of recognition.
once understood
Substitutes 'previously known' with 'once understood', emphasizing past comprehension.
earlier recognized
Uses 'earlier recognized' instead of 'previously known', focusing on the timing of the recognition.
already established
Replaces 'previously known' with 'already established', indicating prior validation or confirmation.
previously established
Uses "previously established" instead of "previously known", focusing on the action of confirming or setting up something in the past.
in the past known
Changes 'previously known' to 'in the past known', emphasizing a more informal, conversational tone.
acknowledged before
Substitutes 'previously known' with 'acknowledged before', shifting focus to the act of acknowledgment.
heretofore known
Replaces 'previously known' with 'heretofore known', employing a more formal and somewhat archaic tone.
priorly known
Changes 'previously known' to 'priorly known', offering a less common, slightly more stilted alternative.
FAQs
How can I use "previously known" in a sentence?
You can use "previously known" to indicate that something was recognized or understood at an earlier time. For example, "The element, previously known only in theory, was synthesized in the lab".
What's the difference between "previously known" and "formerly known"?
"Previously known" generally indicates that something was known before, while "formerly known" specifically refers to a past official or legal designation, often used for names or titles.
What can I say instead of "previously known"?
You can use alternatives like "formerly recognized", "previously identified", or "once understood" depending on the context.
Is it redundant to say "previously known"?
While the word "known" implies awareness, "previously" adds emphasis to the timing. It's not inherently redundant but consider if the timing is crucial to the sentence's meaning.
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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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested