Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
believed by
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "believed by" is correct and usable in written English.
It can be used to indicate that a particular belief or opinion is held by someone or a group of people. Example: "The theory was widely believed by scientists in the early 20th century."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Wiki
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
60 human-written examples
Almost all are believed, by believers, to be contact points between the natural and supernatural worlds.
News & Media
That theory is believed by most scientists.
News & Media
Neither was believed by the court.
News & Media
& believed by most scholars to be a hoax.
News & Media
Nothing was ever done, or believed, by halves.
News & Media
But of course that sort of story couldn't be believed by realists.
News & Media
Vitaminas: The term for milkshakes, which apparently are believed by Brazilians to have lots of vitamins.
News & Media
He was believed by some to be a candidate for chancellor.
News & Media
It is believed by Vincos that much of this sum has been obtained dishonestly".
News & Media
What interested me is that these stories are believed by North Koreans.
News & Media
It was believed by some that Smuts was trying to break up the empire.
Encyclopedias
Expert writing Tips
Best practice
When using "believed by", ensure the subject clearly identifies who holds the belief to avoid ambiguity. For example, instead of "It is believed", specify "It is believed by scientists".
Common error
Avoid overuse of passive constructions with "believed by". While grammatically correct, excessive passive voice can make your writing sound weak and indirect. Consider active alternatives where appropriate.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "believed by" functions as a prepositional phrase that modifies a verb, typically in the passive voice. It indicates who holds a particular belief or opinion. Ludwig provides numerous examples of this usage across various contexts.
Frequent in
News & Media
38%
Science
20%
Wiki
13%
Less common in
Encyclopedias
9%
Formal & Business
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "believed by" is a grammatically sound and widely used prepositional phrase that serves to attribute a belief or opinion to a specific source. Ludwig AI confirms its correctness and provides ample examples across diverse fields such as news, science, and encyclopedias. While versatile, it's important to avoid overuse of the passive voice and ensure clarity regarding who holds the belief. Alternatives like "held by" or "considered by" can offer nuanced variations in meaning. Overall, "believed by" is a reliable tool for expressing attribution in your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
held by
Focuses on the act of holding a belief rather than the process of believing.
considered by
Emphasizes a more thoughtful and deliberate evaluation leading to a belief.
regarded by
Similar to considered, but can also imply a certain level of respect or esteem.
accepted by
Highlights the agreement or consensus of a group on a particular belief.
thought of by
A more informal way to express that someone has a particular opinion or belief.
deemed by
Implies a formal judgment or assessment leading to a belief.
presumed by
Suggests a belief based on probability or likelihood, rather than concrete evidence.
understood by
Emphasizes comprehension and acceptance of a concept.
taken as
Indicates that something is interpreted or understood in a particular way.
viewed by
Highlights a specific perspective or way of seeing something.
FAQs
How can I use "believed by" in a sentence?
Use "believed by" to indicate who holds a particular belief or opinion. For example, "The theory is "believed by most scientists"".
What are some alternatives to "believed by"?
Alternatives include "held by", "considered by", or "regarded by", depending on the specific nuance you want to convey.
Is it better to use "believed by" or a more active construction?
While "believed by" is grammatically correct, using an active construction can often make your writing more direct and engaging. For example, instead of "It is believed by many", you could say "Many believe it".
What's the difference between "believed by" and "thought of by"?
"Believed by" suggests a stronger conviction or acceptance of something as true, while "thought of by" implies a more casual or tentative opinion.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested