in-service
adjective
in-ser·vice
ˈin-ˈsər-vəs 
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
Alongside the post, the department shared pictures of the bird looking cozy inside the not-in-service motorcycle.
—
Gabrielle Rockson, PEOPLE, 8 June 2026
Built to listen for submarines The Explorer-class ships are being developed to replace Navy’s aging fleet of in-service Victorious and Impeccable class ocean surveillance vessels.
—Kaif Shaikh, Interesting Engineering, 1 June 2026
In addition, the Tianzhou-10 toted up to the station China's first dynamic, in-service test of perovskite solar cells.
—Leonard David, Space.com, 27 May 2026
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
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
NetJets plans to build a 24-strong fleet of Global 8000 aircraft that will replace the in-service Global 7500 jets.
—Rachel Cormack, Robb Report, 27 Mar. 2026
For example, the in-service start of the Mountain Valley Pipeline marked a meaningful milestone for Appalachia.
—Bryce Erickson, Forbes.com, 29 Jan. 2026
Yet, policing experts who spoke with The Courier Journal say basic training — as well as yearly in-service training to keep up on skills and learn about new laws and trends in policing — is critical for anyone acting as law enforcement.
—Josh Wood, Louisville Courier Journal, 15 Dec. 2025
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Gabrielle Rockson, PEOPLE, 8 June 2026
Built to listen for submarines The Explorer-class ships are being developed to replace Navy’s aging fleet of in-service Victorious and Impeccable class ocean surveillance vessels.
—Kaif Shaikh, Interesting Engineering, 1 June 2026
In addition, the Tianzhou-10 toted up to the station China's first dynamic, in-service test of perovskite solar cells.
—Leonard David, Space.com, 27 May 2026
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
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
NetJets plans to build a 24-strong fleet of Global 8000 aircraft that will replace the in-service Global 7500 jets.
—Rachel Cormack, Robb Report, 27 Mar. 2026
For example, the in-service start of the Mountain Valley Pipeline marked a meaningful milestone for Appalachia.
—Bryce Erickson, Forbes.com, 29 Jan. 2026
Yet, policing experts who spoke with The Courier Journal say basic training — as well as yearly in-service training to keep up on skills and learn about new laws and trends in policing — is critical for anyone acting as law enforcement.
—Josh Wood, Louisville Courier Journal, 15 Dec. 2025
Cite this Entry
“In-service.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in-service. Accessed 12 Jun. 2026.
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