: 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.
Flavor add-ins will make your vinaigrette even better, and so much fresher-tasting than store-bought. Josh Miller, Southern Living, 4 Jan. 2025 This add-in also theoretically adds another potential surface for cyber attacks, which is interesting given that Meet prides itself on its minimal attack surface. PCMAG, 12 Dec. 2024 Coffee add-ins The healthiness of a particular coffee depends on the type and amount of milk or cream used and how that aligns with someone's health goals, Cording said. Erica Lamberg, Fox News, 11 Dec. 2024 So far Intel has stated that add-in board partners Acer, ASRock, GUNNIR, ONIXX, MAXSUN and Sparkle will offer the Arc B580 from December 13th from $249, with Intel also offering a Limited Edition version too. Antony Leather, Forbes, 3 Dec. 2024 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

Dictionary Entries Near add-in

Cite this Entry

“Add-in.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/add-in. Accessed 20 Jan. 2025.

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!