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
only one answer
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "only one answer" is correct and usable in written English.
It can be used when indicating that there is a singular correct response to a question or problem. Example: "In this math problem, there is only one answer that satisfies the equation."
✓ Grammatically correct
News & Media
Science
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
58 human-written examples
If Karzai says no, then there is only one answer: "You're on your own, pal.
News & Media
There is only one answer.
News & Media
Only one answer is permitted.
News & Media
There is only one answer – cyberspace.
News & Media
"There is only one answer," Lemmy said, "legalise it".
News & Media
This year, there is only one answer: a burkini.
News & Media
"Only one answer can take care of our questions".
News & Media
For the art snobs, there is only one answer.
News & Media
To Kelby Jasmon, there was only one answer.
News & Media
Except really there's only one answer, "think big".
News & Media
"There's really only one answer," he said of Mr. Hussein.
News & Media
Expert writing Tips
Best practice
When presenting "only one answer", ensure that it is well-supported and justified, as it implies that other alternatives are not viable or correct.
Common error
Avoid using "only one answer" when multiple solutions or interpretations are possible. Overstating the uniqueness of an answer can undermine your credibility if other valid options exist.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "only one answer" functions as a determiner phrase, highlighting that there is a single, unique solution or response. Ludwig AI confirms its widespread use in diverse contexts, such as when there is a singular correct response to a question or problem.
Frequent in
News & Media
64%
Science
28%
Formal & Business
8%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "only one answer" is a grammatically sound and frequently used expression to denote a single, definitive solution or response. As confirmed by Ludwig AI, it is common in news, media, and scientific contexts. When using this phrase, ensure that the context genuinely supports the claim of a unique solution to avoid overstatement. Related phrases, such as "a single answer" or "just one answer", can be used for subtle variations in emphasis. When phrasing questions in quizzes or when explaining possible solutions, consider the benefits and drawbacks of indicating if "only one answer" is applicable to avoid ambiguity.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
a single answer
Replaces "only" with "single", emphasizing the uniqueness of the answer.
just one answer
Substitutes "only" with "just", implying simplicity or ease in finding the answer.
one possible answer
Adds "possible" to clarify that it's the only feasible solution.
a unique solution
Replaces "answer" with "solution", focusing on problem-solving.
the only solution
Replaces "answer" with "solution", emphasizing that this is the only solution for the problem.
the sole response
Uses "sole" and "response" for a more formal tone.
a definitive answer
Emphasizes the conclusiveness of the answer.
one clear answer
Highlights the clarity and lack of ambiguity in the response.
one correct response
Focuses on the correctness and accuracy of the answer.
the single key
Uses "single key" focusing on a metaphorical solution.
FAQs
How can I use "only one answer" in a sentence?
You can use "only one answer" to emphasize that there is a single, correct solution to a problem. For example, "In this quiz, there is "only one answer" for each question".
What can I say instead of "only one answer"?
You can use alternatives like "a single answer", "just one answer", or "one possible answer" depending on the context.
Which is correct, "only one answer" or "one answer only"?
Both phrases are grammatically correct, but ""only one answer"" is more common and natural in English. "One answer only" is less frequently used.
Is it appropriate to use "only one answer" in formal writing?
Yes, ""only one answer"" is appropriate for both formal and informal writing. It's a clear and direct way to indicate a unique solution or response.
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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested