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
usefulness time
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "usefulness time" is not correct and does not convey a clear meaning in written English.
It seems to be an attempt to refer to a period during which something is useful, but it lacks clarity and standard usage. Example: "The usefulness time of this software is limited, so we should consider upgrading soon."
⚠ May contain grammatical issues
Science
News & Media
Wiki
Alternative expressions(3)
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
1 human-written examples
In contrast, nurses' perceptions of the usefulness, time efficiency, and ease of the documentation process decreased post-BCMA.
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
It seeks to reconcile universals and particulars, the possible and the hoped-for, as well as acquire legitimacy through use and usefulness over time.
Science
Objective: To compare the usefulness of time until motor localization occurs versus time until commands are followed in predicting outcome after traumatic brain injury (TBI).
All computer makers turn out the occasional lemon, and how long a computer "lasts" depends tremendously on how you use it and how you judge its usefulness over time.
News & Media
By Lorrie Moore The novelist Margaret Atwood has wandered off from us before: once, in 1986, to the mid-twenty-first century, for a feminist dystopia, "The Handmaid's Tale," in which women are enslaved according to their reproductive usefulness; another time, in 1996, to the nineteenth century, to make thrifty use of her graduate work at Radcliffe in the faux-Victorian novel "Alias Grace".
News & Media
The novelist Margaret Atwood has wandered off from us before: once, in 1986, to the mid-twenty-first century, for a feminist dystopia, "The Handmaid's Tale," in which women are enslaved according to their reproductive usefulness; another time, in 1996, to the nineteenth century, to make thrifty use of her graduate work at Radcliffe in the faux-Victorian novel "Alias Grace".
News & Media
But adoption and genuine usefulness take time.
News & Media
In fact, many scientists have thought the short muscles must be the evolutionary vestiges of longer muscles that lost their usefulness over time.
News & Media
Even if the government was so mad and wrong to do the third runway or mixed mode [mixing take-offs and landings on the same runways] those solutions would rapidly run out of usefulness and time.
News & Media
"Many people who wrote said, 'International education means this much to our university.' " In the meetings, academics and their lobbyists also suggested that singling out foreign students would embarrass Senator Feinstein and prove of little usefulness over time, since they account for only 2percentt of all visa holders.
News & Media
In a second set of experiments, we have tested the usefulness of time features for the unsupervised alias matching problem.
Science
Expert writing Tips
Best practice
Instead of "usefulness time", consider using more common and clear phrases such as "period of usefulness" or "useful lifespan" to ensure clarity and avoid grammatical errors.
Common error
Avoid combining nouns in a way that creates ambiguous meanings. Using "usefulness time" can sound unnatural; instead, opt for descriptive phrases that clearly indicate the intended meaning such as "period of usefulness".
Source & Trust
79%
Authority and reliability
1.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "usefulness time" functions as a noun phrase, attempting to describe a duration related to the quality of being useful. However, it's an uncommon and grammatically awkward construction according to Ludwig.
Frequent in
Science
34%
News & Media
33%
Wiki
33%
Less common in
Formal & Business
0%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "usefulness time" is an infrequent and grammatically questionable construction. Ludwig indicates it lacks standard usage and suggests clearer alternatives like "period of usefulness" or "useful lifespan". While its intended purpose is to denote the duration of something's utility, its awkward phrasing makes it unsuitable for formal contexts. Instead, prioritize grammatically sound and widely accepted alternatives to ensure clarity and precision in your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
period of usefulness
Focuses on the duration during which something maintains its usefulness.
useful lifespan
Emphasizes the length of time something remains functional and useful.
duration of utility
A more formal way to express how long something is useful.
time of effectiveness
Highlights the period when something is effective or productive.
length of service
Often used for equipment or employees, indicating how long they are in service and useful.
effective period
Focuses on the period during which something has a strong effect or is productive.
window of opportunity
Emphasizes a specific time frame when something is most useful or advantageous.
service life
Similar to useful lifespan, specifically indicating how long a product or device can be used.
practical duration
Indicates the length of time something is practically useful.
shelf life
Specifically refers to how long a product remains usable, especially in the context of perishables.
FAQs
What is a more grammatically sound alternative to "usefulness time"?
More appropriate alternatives include "period of usefulness", "useful lifespan", or "duration of utility".
How can I clearly express the duration something remains helpful or effective?
Instead of "usefulness time", try using phrases such as "the time something remains useful" or "the period during which something is effective" to avoid ambiguity.
In what contexts might I need to specify how long something is useful?
You might need to specify how long something is useful in contexts such as product descriptions, project planning, or when discussing the longevity of a particular strategy or resource. Consider using terms like "effective period" or "practical duration" in these scenarios.
Is "usefulness time" ever correct, or is it always better to use an alternative?
While the meaning might be understood in some contexts, "usefulness time" is not considered standard English. It's generally better to use alternatives like "period of usefulness" or "useful lifespan" to ensure clarity and correctness.
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
79%
Authority and reliability
1.8/5
Expert rating
Real-world application tested