: 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.
For those willing to stretch the limits, though, a solid base recipe has endless possibility for layers, add-ins, frostings, glazes, and toppings. Catherine Jessee, Southern Living, 10 July 2026 Garten typically cooks the shrimp in oil first, before adding her stock, paella rice, seasoning, and sausage, with the rest of the add-ins following after. Sophia Beams, Better Homes & Gardens, 3 July 2026 The tableside queso offers a dozen add-in options. Fort Worth Star-Telegram, 11 June 2026 Start with one tool and one add-in. Allison Palmer, Kansas City Star, 20 May 2026 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 18 Jul. 2026.

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