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
A single instance activity
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "A single instance activity" is correct and usable in written English.
It can be used to describe an action or task that occurs only once, often in contexts like project management or software development. Example: "In our analysis, we identified a single instance activity that significantly impacted the overall results."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(1)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
60 human-written examples
A single instance can drive a woman from her subject and ruin her life more generally.
News & Media
A single instance can, perhaps, lead to justified generalization.
Science
A single instance of Autodock was mapped to a single CPU core in every case.
Science
A single instance of sexual assault is one too many".
News & Media
A single instance of a web series program is called an episode or webisode".
News & Media
A single instance of a male cannibalizing an adult female is known.
Wiki
A single instance of the database gathers the data for all the genome projects.
Currently, the American Diabetes Association (ADA) recommends not omitting aerobic physical activity for more than 2 consecutive days, as the effect of a single instance of aerobic activity on insulin sensitivity lasts no more than 72 hours [ 37].
Science
He does not cite a single instance of the VA in action.
News & Media
But we do know that Amtrak police has not reported a single instance of finding and catching a potential terrorist or serious threat as a result of its suspicious activity reports.
News & Media
Eventually, he tracked down a single instance.
News & Media
Expert writing Tips
Best practice
Use the phrase to clearly define a task or event that happens only once within a larger process, ensuring there is no ambiguity about its repetition.
Common error
Avoid using "a single instance activity" when referring to ongoing or repetitive processes; instead, reserve it for actions that are genuinely unique and non-recurring to maintain accuracy in your descriptions.
Source & Trust
60%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a single instance activity" functions as a descriptor, pinpointing an action or task performed precisely once. It provides clarity by differentiating it from recurring tasks. Ludwig AI indicates this phrase is correct and usable in written English.
Frequent in
Science
0%
News & Media
0%
Formal & Business
0%
Less common in
Science
0%
News & Media
0%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, "a single instance activity" is a descriptor for an action or task completed only once. Ludwig AI states the phrase is correct and usable in English. Although examples are currently missing, this guide has provided insights into its grammatical correctness, potential usage contexts, and related phrases. This analysis suggests that understanding and applying this phrase correctly can improve clarity and precision in professional and technical communications.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
One-time occurrence
Focuses on the event happening only once.
Isolated event
Highlights the lack of connection to other events.
Unique activity
Emphasizes the distinct and unparalleled nature of the activity.
Single occurrence task
Specifies the activity as a task performed only once.
Individual instance
Stresses the activity as a standalone example.
Singular event
Underscores the activity's status as a lone event.
One-off task
Highlights the activity as something done only once and not repeated.
Non-recurring event
Emphasizes that the event does not happen regularly.
One-shot activity
Describes the activity as having only one attempt or instance.
Solitary occurrence
Highlights the activity as occurring by itself.
FAQs
How can I use "a single instance activity" in a sentence?
You can use "a single instance activity" to describe a task that occurs only once, for example: "Our project included "a single instance activity" focused on user onboarding".
What are some alternatives to "a single instance activity"?
Consider using alternatives like "one-time occurrence", "isolated event", or "unique activity" depending on the nuance you want to convey. Each of these alternatives (/s/one+time+occurrence, /s/isolated+event, /s/unique+activity) emphasizes a different aspect of the singular event.
Is it correct to use "a single instance activity" in project management?
Yes, it is correct when referring to a task or activity that is performed only once within the scope of the project. It helps differentiate it from recurring or continuous activities.
How does "a single instance activity" differ from "recurring activity"?
"A single instance activity" refers to an action that happens only one time, whereas a "recurring activity" is an action that repeats over a period. The key difference is the repetition aspect.
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
60%
Authority and reliability
4.1/5
Expert rating
Real-world application tested