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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
kept in service
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "kept in service" is correct and usable in written English.
It can be used to describe something that is maintained or continued to be used for a specific purpose or function. Example: "The old bus was kept in service for several more years despite its age."
✓ Grammatically correct
News & Media
Wiki
Science
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
19 human-written examples
And once built, they are often kept in service far longer than originally projected.
News & Media
Certainly, the danger of an explosion increased the longer the ageing plane was kept in service.
News & Media
And that means older fighters will be kept in service longer, increasing costs for maintenance and spare parts.
News & Media
To keep the oil pumping, the rigs, pipelines and other equipment must be kept in service much longer than originally planned, and that is raising concerns about maintenance and safety on the oldest of the rigs.
News & Media
Other senior Russian defense officials told the Interfax news service that some Russian nuclear rockets might be kept in service longer because of the American action, but that no major shifts in Russia's strategic posture were envisioned.
News & Media
To keep the oil pumping, the rigs, pipelines and other equipment must be kept in service much longer than originally planned, and that is raising concerns about maintenance and safety on the oldest of the North Sea rigs.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
41 human-written examples
19] informed the British Foreign Office that it intends to keep in service 19,000 tons of over-age destroyers which otherwise would have been thrown out of commission before the New Year.
News & Media
There is equipment here that perhaps no one else in America has had the will or ability to keep in service: three dark-red steam-driven generators, for example, installed in 1900, that together with their predecessors make this one of the oldest working sites of electric generation in the world.
News & Media
Today, after 128 years of continuous duty, the viaduct keeps in service, with trains crossing at slow speed and alternated one-way road traffic with no heavy-weight vehicles.
Medusa survived the war and was one of six light cruisers Germany was permitted to keep in service by the Treaty of Versailles.
Wiki
Yongle kept in his service Mongol, central Asian, Jurchen, Vietnamese and Korean eunuchs.
News & Media
Expert writing Tips
Best practice
When writing about machinery or equipment, use "kept in service" to emphasize its continued functionality, especially after expected lifespan or potential obsolescence.
Common error
Avoid using "kept in service" when the subject is actually being stored or not actively used. "Kept in service" implies active functionality, while storage indicates inactivity.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "kept in service" functions as a verb phrase indicating the continuation of an item or system's operational status. Ludwig AI confirms its proper usage across various contexts, signifying that something is maintained for ongoing use, as shown in multiple examples.
Frequent in
News & Media
45%
Wiki
25%
Science
15%
Less common in
Formal & Business
5%
Encyclopedias
5%
Reference
5%
Ludwig's WRAP-UP
The phrase "kept in service" is a common and grammatically correct way to describe something maintained for continued use, as confirmed by Ludwig. Its frequency in news, wiki, and scientific sources highlights its versatility across different registers. While synonyms like "maintained in operation" and "remained operational" exist, each carries a slightly different nuance. Remember to use it accurately to convey continued functionality rather than storage. Ludwig AI underscores its reliability and broad applicability.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
Maintained in operation
Focuses more on the act of maintaining something rather than just keeping it.
Remained operational
Highlights the state of being operational after a certain period.
Continued to function
Emphasizes the ongoing function of something.
Stayed active
Indicates a continued state of activity or use.
Preserved for use
Suggests a conscious effort to preserve something for future use.
Retained in use
Highlights that something was deliberately kept for continued use.
Upheld in operation
Stresses that something has been actively upheld or supported to continue its operation.
Sustained in functionality
Indicates continuous support to maintain its functionality.
Conserved for service
Implies careful management to keep something available for service.
Prolonged its usability
Focuses on extending the period something can be used.
FAQs
How can I use "kept in service" in a sentence?
You can use "kept in service" to describe something that continues to function or operate. For example, "The old airplane was "kept in service" despite its age because it was well-maintained".
What's the difference between "kept in service" and "maintained in operation"?
"Kept in service" generally implies a continuation of use, while "maintained in operation" emphasizes the active effort to keep something running. Both are similar, but the latter highlights the maintenance aspect.
Which is more formal, "kept in service" or "remained operational"?
"Remained operational" tends to be slightly more formal, often used in technical or official contexts, whereas "kept in service" is more generally applicable.
What can I say instead of "kept in service" to emphasize continued functionality?
You could use phrases like "continued to function" or "stayed active" depending on whether you want to emphasize the process or the state of functionality.
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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
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested