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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
one exception is
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "one exception is" is correct and usable in written English.
You can use it when you are explaining a rule or set of conditions that has one exception. For example: "You must be 18 or older to enter, but one exception is that people aged 16 or 17 can enter with the permission of a guardian."
✓ Grammatically correct
Science
News & Media
Formal & Business
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
One exception is qVA-7 on LG19.
Science
One exception is tin.
News & Media
One exception is employment.
News & Media
One exception is IAG, owner of BA.
News & Media
One exception is sunflower shoots.
News & Media
One exception is college football.
News & Media
One exception is Dick Morris.
News & Media
One exception is "Chasing Oblivion" (2003).
News & Media
The one exception is the suit.
News & Media
"But my one exception is the Yankees".
News & Media
Perhaps the one exception is Ruth.
News & Media
Expert writing Tips
Best practice
Use "one exception is" to clearly introduce a deviation from a general rule or pattern. This helps maintain clarity and avoid confusion for the reader.
Common error
Avoid using "except" in place of "exception". "Except" is a preposition or conjunction, while "exception" is a noun. For example, instead of saying "One except is...", use "One exception is...".
Source & Trust
88%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "one exception is" functions as a transitional phrase, specifically serving as an introducer of an exception to a general statement or rule. As Ludwig AI explains, it's a grammatically sound way to signal a deviation.
Frequent in
Science
32%
News & Media
58%
Formal & Business
10%
Less common in
Academia
0%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "one exception is" is a grammatically sound and frequently used transitional phrase that serves to introduce a specific deviation from a general rule or statement. As Ludwig AI confirms, it is correct and usable in written English. Its prevalence across diverse domains, including science, news media, and business, underscores its versatility. While alternatives such as "one caveat is" or "one exclusion is" can offer nuanced variations, mastering the proper usage of "one exception is" ensures clarity and precision in writing. Pay particular attention to avoiding common errors such as confusing "exception" with "except" to maintain grammatical accuracy.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
One caveat is
Replaces "exception" with "caveat", implying a warning or condition that should be considered.
One exclusion is
Substitutes "exception" with "exclusion", focusing on the act of being left out or not included.
One reservation is
Uses "reservation" instead of "exception", suggesting a doubt or concern that qualifies the general statement.
One anomaly is
Replaces "exception" with "anomaly", highlighting something that deviates from the norm or expectation.
One qualification is
Substitutes "exception" with "qualification", implying a condition or limitation that applies.
One limitation is
Uses "limitation" instead of "exception", focusing on a restriction or constraint.
One departure is
Replaces "exception" with "departure", suggesting a deviation from the standard practice or rule.
One case is
Uses "case" instead of "exception", referring to a specific instance that differs.
One objection is
Substitutes "exception" with "objection", implying a reason for disagreement or opposition.
One discrepancy is
Replaces "exception" with "discrepancy", highlighting an inconsistency or difference.
FAQs
How can I use "one exception is" in a sentence?
Use "one exception is" to introduce a specific instance that doesn't follow a general rule. For example, "Most fruits are sweet, but "one exception is" lemons."
What's the difference between "one exception is" and "except for"?
"One exception is" introduces a noun phrase that is the exception, while "except for" introduces a prepositional phrase that describes the exception. For example, "Everyone passed the test, except for John" versus "Everyone passed the test, "one exception is" John."
What are some alternatives to "one exception is"?
You can use alternatives like "one caveat is", "one exclusion is", or "one anomaly is" depending on the specific nuance you want to convey.
Is it grammatically correct to start a sentence with "one exception is"?
Yes, it is grammatically correct to start a sentence with ""one exception is"". It's a clear and concise way to introduce an exception to a general statement.
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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
4.6/5
Expert rating
Real-world application tested