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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
one off
Grammar usage guide and real-world examplesUSAGE SUMMARY
"one off" is correct and usable in written English.
You can use it to describe a unique occurrence of something that is not expected to happen again in the future. For example, "The store held a one-off sale for customers who arrived early."
✓ Grammatically correct
News & Media
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
3 human-written examples
"Cross that one off".
News & Media
"On" was one, "off" was zero.
News & Media
Shake one off, another is there.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
Click on Create One-Off Event.
Wiki
He's a real one-off".
News & Media
He was a one-off".
News & Media
This isn't a one-off".
News & Media
There are fine one-off observations, too.
News & Media
This was not just a one-off".
News & Media
"He's a one-off special person.
News & Media
Other one-off shocks are likely.
News & Media
Expert writing Tips
Best practice
Use "one off" to clearly indicate that something is a singular event or a unique item, not part of a series or regular occurrence.
Common error
Avoid using "one of" when you mean "one off". "One of" implies membership in a group, while "one off" describes something unique and non-recurring.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "one off" primarily functions as an adjective or adjectival phrase, modifying a noun to indicate that something is unique, singular, or not likely to be repeated. As Ludwig AI points out, the phrase is grammatically correct and widely accepted.
Frequent in
News & Media
60%
Wiki
20%
Science
10%
Less common in
Formal & Business
5%
Reference
3%
Social Media
2%
Ludwig's WRAP-UP
In summary, "one off" is a versatile phrase used to describe something unique and non-recurring. As an adjective or adjectival phrase, it is typically used to modify a noun, emphasizing its singular nature. While grammatically correct and widely accepted, according to Ludwig AI, its register leans towards neutral to informal. The phrase is commonly found in News & Media, Wiki and Science, as Ludwig's examples demonstrate, while alternative phrases such as "unique", "exceptional" and "unrepeatable" can be used depending on the context to communicate in a more efficient way.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
unique
Emphasizes the distinctiveness and unparalleled nature of something.
exceptional
Highlights that something is out of the ordinary, typically in a positive way.
unrepeatable
Focuses on the impossibility of replicating the event or item.
singular
Stresses the rarity and individuality of something.
isolated incident
Indicates that an event is not part of a pattern or trend.
once in a lifetime
Highlights the infrequency and specialness of an experience.
unparalleled
Implies there is nothing else like it in terms of quality or scale.
uncommon
Focuses on the rarity and unusual quality of something.
special
Indicates that an event is particularly important or unique.
extraordinary
Highlights the remarkable and impressive nature of an event or person.
FAQs
How can I use "one off" in a sentence?
You can use "one off" to describe something that happens only once or is unique. For example, "This concert is a "one off" event."
What's a good alternative to "one off"?
Alternatives include "unique", "exceptional", or "unrepeatable", depending on the specific context.
Is it "one off" or "one-off"?
"One-off" is the hyphenated form, commonly used as an adjective before a noun (e.g., "a one-off event"). "One off" (without the hyphen) can also be used, though it is less common.
What's the difference between "one off" and "isolated"?
"One off" describes a unique event or item, whereas "isolated" suggests something is separated from others. An "isolated incident" may be a "one off", but not all one-off events are necessarily isolated.
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested