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
for a significant duration
Grammar usage guide and real-world examplesUSAGE SUMMARY
"for a significant duration" is a correct and commonly used phrase in written English.
You would use this phrase to talk about an event or situation that lasts for a long period of time. For example, "We have been living in this city for a significant duration."
✓ Grammatically correct
Academia
News & Media
Science
Alternative expressions(20)
for a considerable period
for a substantial duration
for a prolonged time
for a good while
over an extended period
for quite some time
for a significant period
for a considerable time
for an extended period
for a substantial period
for rather long
for so long
for a considerable duration
for quite long
for a long stretch
for a long time
for a lengthy duration
for a substantial timeframe
over a considerable period
for an absurd amount of time
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
8 human-written examples
How do you initiate something that you can stay invested in for a significant duration of time?
Academia
Also there's a challenge in trying to shift a sense of temporality – how do you initiate something that you can stay invested in for a significant duration of time?
Academia
The depleted Yankees could hardly afford to lose more players to injury, but in less than three innings on Friday, the Yankees lost their starting battery — possibly for a significant duration.
News & Media
The former Derry player has performed a caretaker Brandywell role on two previous occasions but this will be the first time that he will take on the job for a significant duration.
News & Media
So instead of tying rewards and penalties to large, distant, low frequency objectives, such as regaining employment for a significant duration of time, unemployment insurance might tie rewards and penalties to smaller, higher frequency objectives, such as making a specific number of active employer contacts in a week.
Science
Moreover, a significant number of patients achieved disease control for a significant duration.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
52 human-written examples
However, there was a significant duration effect for recovery rates (χ = 13.1, p = .02) with the highest rates being observed when the problem duration was under 3 months (60%) or between 3 and 6 months (63%) and lowest when problem duration was over 4 years (47%).
Notably, the CDQ-24 results in week 12 were better than those recorded in week 4, despite an increase (worsening) of Tsui score (figure 3), suggesting that improvements in QoL are maintained for a clinically significant duration.
Science
In addition, randomization tests for other significant duration variables supported differences in duration between wild and laboratory vocalizations.
Science
Rather than that I would see such banks burned to the ground and their major executives in prison for significant duration.
Academia
The outcome of the study was analyzed using the performance parameter of delay and loss characteristics in various simulation scenarios for determining the significant duration of maximized congestion condition.
Expert writing Tips
Best practice
Use "for a significant duration" when you want to emphasize that something lasted longer than a typical or expected period. This adds weight to the description.
Common error
While "for a significant duration" is correct, avoid using it excessively in informal contexts where simpler phrases like "for a long time" might be more appropriate. Pay attention to your audience and the overall tone of your writing.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "for a significant duration" functions as an adverbial phrase, modifying a verb or clause to specify the length of time an action or state persists. Ludwig's examples showcase its role in describing events with extended timelines.
Frequent in
Science
30%
Academia
30%
News & Media
20%
Less common in
Formal & Business
10%
Wiki
5%
Reference
5%
Ludwig's WRAP-UP
In summary, "for a significant duration" is a grammatically correct adverbial phrase used to emphasize the length of time something persists. Ludwig AI indicates that it is suitable for neutral to formal contexts, commonly appearing in scientific, academic, and news-related writing. While acceptable, remember to consider your audience and choose more casual alternatives like "for a long time" in informal settings. The phrase's strength lies in highlighting the importance or impact of an action or state due to its extended timeline.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
for a considerable period
Substitutes "significant" with "considerable", implying a noticeable amount of time.
for a substantial duration
Replaces "significant" with "substantial", suggesting a large or important amount of time.
for a prolonged time
Uses "prolonged" instead of "significant duration", focusing on the extended nature of the time.
over an extended period
Changes the structure to emphasize the period itself being extended.
for a noteworthy length of time
Replaces "significant" with "noteworthy", highlighting the importance of the duration.
during an appreciable interval
Uses more formal vocabulary like "appreciable" and "interval".
for a marked period
Emphasizes the noticeability of the duration.
for a good while
An informal alternative, suggesting a reasonably long time.
for quite some time
Another informal option, similar to "for a good while".
throughout a considerable timeframe
Combines "considerable" with "timeframe" for a slightly more elaborate expression.
FAQs
How can I use "for a significant duration" in a sentence?
You can use "for a significant duration" to describe events, conditions, or processes that last a noticeably long time. For example, "The treatment proved effective for a significant duration."
What are some alternatives to "for a significant duration"?
Some alternatives include "for a considerable period", "for a substantial duration", or "for a prolonged time", depending on the level of formality you need.
Is "for a significant duration" formal or informal?
"For a significant duration" leans toward the formal side. In informal settings, using "for a long time" or "for a good while" might be more appropriate.
What's the difference between "for a significant duration" and "for a long time"?
"For a significant duration" emphasizes that the length of time is noteworthy or important. "For a long time" is a more general statement about something lasting an extended period.
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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested