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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
a one-time activity
Grammar usage guide and real-world examplesUSAGE SUMMARY
"a one-time activity" is correct and can be used in written English.
It implies a single activity that will not be repeated. For example: "The children went on a one-time outing to the local park last weekend."
✓ Grammatically correct
News & Media
Science
Academia
Wiki
Formal & Business
Alternative expressions(20)
a singular activity
a unique activity
a one-off activity
a single instance activity
an isolated activity
a special event
a one-time service
a one-time engagement
a one-time business
a one-time campaign
a one-time initiative
a one-time support
a one-time test
a one-time implementation
a one-time operational
its only activity
a consolidated activity
a single campaign
a one-off operation
a one-off exercise
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
5 human-written examples
So many business owners think that networking is a one-time activity.
News & Media
This procedure is very time-consuming but it remains a one-time activity.
Science
This definition emphasizes that the act of opportunity recognition is not a one-time activity of an entrepreneur instead is a perpetual one that encompasses perception, discovery and creation (Singh et al.1999).1999
The opportunity recognition is a continuous process that supports the pre-start-up, start-up, survival and growth of a venture and hence it is not a one-time activity in the beginning of venture creation (Singh et al.1999).1999
Writing and selling your book is not a one-time activity -- you need to keep marketing and selling until there is no one left to buy your book.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
This can be a fun one-time activity... or the start of a water fight war.
Wiki
As per EARN's policy, participants in the intervention group will not be allowed to reuse an EARN IDA in the future, as the intervention is a 6-month, one-time activity for all individuals, as is typical of IDAs.
Science
The model development is one-time activity in the very beginning of the lifecycle of a QSAR model.
Science
Excluding various items related to acquisitions and other one-time activities, PepsiCo earned 69 cents a share, 2 cents more than analysts had predicted, according to Thomson Reuters.
News & Media
Deduct the proceeds from asset sales -- one-time activities that were not part of the company's core business -- and Enron's cash flow was a negative $2.56 billion in 2000.
News & Media
Until recently, most of these multilateral discussions have been organized as one-time activities, occurring as conferences, workshops, and informal meetings.
Science
Expert writing Tips
Best practice
Use "a one-time activity" to clearly indicate that an event or action will only occur once and not be repeated. This avoids ambiguity and sets clear expectations.
Common error
Avoid using "a one-time activity" when describing something that has the potential to become a regular occurrence. Ensure the context clearly indicates its singular nature.
Source & Trust
78%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a one-time activity" functions as a noun phrase, acting as a descriptor for an event or action that occurs only once. As Ludwig AI states, it implies a single activity that will not be repeated. Examples from Ludwig illustrate its use in describing events like a "one-time outing" or a "one-time start-up activity".
Frequent in
News & Media
33%
Science
33%
Academia
13%
Less common in
Wiki
13%
Formal & Business
8%
Science
0%
Ludwig's WRAP-UP
In summary, "a one-time activity" is a grammatically correct and commonly used phrase to describe something that happens only once. As Ludwig AI confirms, it is suitable for various contexts, from formal business to informal discussions. While there are alternatives like ""a singular activity"" or ""a one-off activity"", the phrase's straightforwardness and clarity make it a reliable choice. When writing, it is crucial to ensure the described activity is genuinely singular to avoid misleading your audience. Authoritative sources like The New York Times and Forbes demonstrate its widespread usage in professional and journalistic contexts.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
a one-off activity
Uses a more informal term for something done only once.
a single instance activity
Highlights that it is only happening one time.
a non-recurring activity
Stresses that the activity will not happen again.
a unique activity
Highlights the distinct and special nature of the activity.
a singular activity
Emphasizes the uniqueness and isolation of the activity.
an isolated activity
Focuses on the activity's separation from other events.
a solitary activity
Implies the activity is done alone or is without repetition.
a once-in-a-lifetime activity
Emphasizes the rarity and specialness of the event.
a limited-time activity
Conveys that the activity is available for a restricted period.
a special event
Uses a more general term to imply that the activity is distinct and not routine.
FAQs
How can I use "a one-time activity" in a sentence?
You can use "a one-time activity" to describe something that only happens once. For example, "The fundraiser was "a one-time activity" to support the local community center".
What are some alternatives to "a one-time activity"?
Some alternatives include "a singular activity", "a unique activity", or "a one-off activity", depending on the nuance you want to convey.
Is it correct to say "one time activity" instead of "a one-time activity"?
While "one time activity" might be understood, ""a one-time activity"" is grammatically more correct and clearer, especially in formal writing.
What's the difference between "a one-time activity" and a "recurring activity"?
"A one-time activity" happens only once, while a "recurring activity" happens multiple times, usually at regular intervals.
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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
78%
Authority and reliability
4.1/5
Expert rating
Real-world application tested