1
: going on or continuing while one is fully employed
in-service teacher education workshops
2
: of, relating to, or being one that is fully employed
in-service police officers

Examples of in-service in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The brazen rush-hour theft — partially dismantling an in-service subway train while riding on it — is at least the second such act in a week. Evan Simko-Bednarski, New York Daily News, 14 May 2026 Alongside the post, the department shared pictures of the bird looking cozy inside the not-in-service motorcycle. Gabrielle Rockson, PEOPLE, 8 June 2026 Downloading an album in-service for $10 might be an underrated way to support artists directly, and own the music. Los Angeles Times, 16 June 2026 Kinder Morgan and Phillips 66 officials have set an in-service target date of mid-2029. Rob Nikolewski, San Diego Union-Tribune, 22 Apr. 2026 See All Example Sentences for in-service

Word History

First Known Use

1928, in the meaning defined at sense 1

Time Traveler
The first known use of in-service was in 1928

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Cite this Entry

“In-service.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in-service. Accessed 7 Jul. 2026.

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