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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
just an assumption
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "just an assumption" is correct and usable in written English.
It can be used when you want to express that something is merely a belief or idea without concrete evidence. Example: "While I appreciate your input, I must clarify that my conclusion is just an assumption based on the available data."
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(4)
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
17 human-written examples
"It's just an assumption".
News & Media
This is obviously just an assumption.
News & Media
But this was just an assumption.
News & Media
Although that's just an assumption based on a single image.
News & Media
Lau suspects that only users who have purchased an item can review it, although this is just an assumption.
News & Media
"But this is just an assumption," warns Tookey, "We can't be sure of the future because the virus is good at developing resistance to specific drugs, and none of these children have ever lived into middle – or older age".
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
43 human-written examples
But now I've just made an assumption.
Maybe he just made an assumption.
News & Media
That idea is an artifact of the old Billboard charting system, which was premised on just such an assumption.
News & Media
But some in the White House, including in Cheney's office, had made just such an assumption — that "the lack of evidence means they must have it," the former official said.
News & Media
Consult with your tax or investment professional to help figure out the kind of gain - don't just make an assumption.
News & Media
Expert writing Tips
Best practice
When using the phrase "just an assumption", ensure you clearly communicate the degree of uncertainty involved. Qualify it further by explaining the basis for the assumption or acknowledging potential counterarguments.
Common error
Avoid presenting an idea as definitively true when it's "just an assumption". Use hedging language to indicate uncertainty and avoid misleading your audience.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "just an assumption" functions as a qualifier, expressing that a statement is based on belief or conjecture rather than concrete evidence. Ludwig AI examples show it's often used to introduce a degree of uncertainty or to highlight the lack of solid proof for a claim.
Frequent in
News & Media
33%
Science
33%
Academia
17%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
The phrase "just an assumption" is a common and grammatically sound way to indicate that a statement is based on belief or conjecture rather than solid proof. As Ludwig AI points out, it serves as a qualifier, tempering assertions and expressing doubt. Its neutral register makes it appropriate for diverse contexts, from news reporting to academic discourse. When using this phrase, it is crucial to acknowledge the uncertainty involved and avoid presenting it as a definitively true fact. While "just an assumption" appears frequently in news, science, and academic sources, according to Ludwig, it's important to consider more precise alternatives for formal writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
merely a supposition
Replaces "assumption" with "supposition" and "just" with "merely", emphasizing the lack of evidence.
only a presumption
Replaces "assumption" with "presumption" and "just" with "only", highlighting that the idea is based on limited evidence.
simply a guess
Substitutes "assumption" with the more informal "guess" and "just" with "simply", indicating a less formal and potentially less informed belief.
purely speculative
Replaces the entire phrase with a more concise and formal expression, emphasizing the lack of factual basis.
largely conjectural
Substitutes "just an assumption" with "largely conjectural", which is more formal and highlights the reliance on guesswork.
based on speculation
Focuses on the speculative nature of the idea, highlighting its lack of grounding in concrete facts.
mostly theoretical
Replaces "assumption" with "theoretical" and "just" with "mostly", suggesting the idea is based on abstract concepts rather than concrete evidence.
an unproven assertion
Emphasizes the lack of proof for the statement, highlighting its tentative nature.
a tentative hypothesis
Replaces "just an assumption" with a more scientific term, indicating a provisional explanation that requires further investigation.
a working hypothesis
Indicates that the assumption is being used as a starting point for further work or investigation.
FAQs
How can I use "just an assumption" in a sentence?
You can use "just an assumption" to express that something is a belief or idea without concrete evidence. For instance, "His theory is "just an assumption" based on limited data".
What phrases are similar to "just an assumption"?
Alternatives include phrases like "merely a supposition", "simply a guess", or "only a presumption", depending on the context and the level of formality you want to convey.
Is it appropriate to use "just an assumption" in formal writing?
While usable, in formal contexts it's often better to use more precise and nuanced language that clarifies the degree of uncertainty. Consider using "tentative hypothesis" or "based on speculation".
What's the difference between "just an assumption" and "a proven fact"?
"Just an assumption" implies a lack of concrete evidence, whereas "a proven fact" indicates that something has been verified with evidence. Using the correct phrase is crucial for accurately conveying information.
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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