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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 service which
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a service which" is correct and usable in written English.
It can be used when describing a specific service and providing additional information about it. Example: "We offer a service which helps businesses improve their online presence."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(20)
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
60 human-written examples
Ticketmaster was simply offering a service, which ticket buyers were free to forgo.
News & Media
It's a service which is unique to one network but luckily, it's Orange.
News & Media
Nicholas Serota and MacGregor offer a service which PR firm Bell Pottinger can only envy.
News & Media
Acas is a service which aims to improve organisations and working life through better employment relations.
News & Media
How can a service which covers the area from Penzance to Tewkesbury be considered local?
News & Media
This will result in a service which is 'patchy and inconsistent'.
News & Media
CloudFlare offers customers tools including protection including a service which routes connections through its own network during a DDoS.
News & Media
Oh Lord, here we go again: the NHS offering a service which was too late to be any use.
News & Media
They will charge you for a service which you can get for free from the CAB or the helplines.
News & Media
People who are building a service which I pay for with my privacy or money I'm quite okay with.
News & Media
It involves a service which is loss-making around the rural edges, but vital precisely to those areas.
News & Media
Expert writing Tips
Best practice
When defining a service, follow "a service which" with a verb that clearly describes its function or purpose. For example, "a service which provides customer support".
Common error
While grammatically correct, "a service which" can sound overly formal in casual writing. In such cases, prefer the shorter and more common "a service that".
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a service which" functions as a relative clause, modifying the noun "service". It introduces additional information about the service being discussed, as shown in many of Ludwig's examples.
Frequent in
News & Media
61%
Science
29%
Wiki
8%
Less common in
Formal & Business
1%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "a service which" is a grammatically sound and frequently used relative clause that provides additional information about a service. As affirmed by Ludwig, it is most commonly found in news and media, as well as scientific writing. While correct, it can sometimes sound overly formal in casual contexts, where "a service that" might be more appropriate. When using "a service which", ensure that the subsequent clause clearly defines the function or characteristics of the service being described. Remember to consider the context and target audience to maintain the appropriate level of formality in your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
a service that
Replaces "which" with the more common relative pronoun "that".
a service providing
Uses a present participle phrase instead of a relative clause, creating a more concise structure.
a service that offers
Adds the verb "offers" to explicitly state the offering nature of the service.
a service designed to
Highlights the purpose or intention behind the service.
a platform that
Substitutes "service" with "platform", suitable when referring to digital services.
a solution that
Replaces "service" with "solution", emphasizing the problem-solving aspect.
a facility that
Uses "facility" instead of "service", appropriate for physical or infrastructural services.
a program that
Replaces "service" with "program", suitable for structured sets of activities.
a system that
Uses "system" instead of "service", appropriate when describing a set of interconnected elements.
a resource that
Substitutes "service" with "resource", emphasizing the availability of support.
FAQs
When should I use "a service which" instead of "a service that"?
While both are grammatically correct, "a service which" is often perceived as more formal. Use "a service that" in most contexts, reserving "a service which" for more formal writing or when "which" is part of a nonrestrictive clause.
What are some alternatives to "a service which"?
Depending on the context, you can use alternatives such as "a service providing", "a service that offers", or "a service designed to".
Is "a service which" grammatically correct?
Yes, "a service which" is grammatically correct. However, it is important to ensure that "which" is used correctly in a nonrestrictive clause, if applicable. Consider rephrasing if the clause is restrictive.
How can I make my writing sound less formal when using "a service which"?
To sound less formal, substitute "a service which" with the more common and conversational "a service that". You can also rephrase the sentence to use a participle phrase, such as "a service providing".
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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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested