: being or able to be added to and enclosed within an existing system (such as a computer)
add-in hardware
add-in noun

Examples of add-in 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.
All the cookies, cakes, and other add-ins are baked by hand and then put into the ice cream. Jenna Thompson, Kansas City Star, 24 Sep. 2025 Guests first choose their broth, then noodles, proteins and other add-ins. Endia Fontanez, AZCentral.com, 4 Sep. 2025 Some examples listed in the filing include, but aren’t limited to, add-in board manufacturers, distributors, original design manufacturers (ODMs), original equipment manufacturers (OEMs), and system integrators. Marco Quiroz-Gutierrez, Fortune, 29 Aug. 2025 The detachable fruit and nut dispenser deposits add-ins into the dough as needed. Bestreviews, Mercury News, 29 Aug. 2025 See All Example Sentences for add-in

Word History

First Known Use

1980, in the meaning defined above

Time Traveler
The first known use of add-in was in 1980

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Cite this Entry

“Add-in.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/add-in. Accessed 2 Oct. 2025.

Last Updated: - Updated example sentences
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