: 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
Use your favorite butter brand and mix in spicy add-ins yourself to control the level of heat.
—
Sophia Beams, Better Homes & Gardens, 28 Jan. 2026
Water is one of the best options, especially when your smoothie already includes fruit, protein, and other flavorful add-ins.
—Health, 28 Jan. 2026
Flavor add-ins, though, range from coconut to green apple, kiwi, lavender, passionfruit, vanilla and more.
—Brittany Anas, Denver Post, 27 Jan. 2026
Feel free to make unique colors, add scents, or even use other add-ins to customize your playdough.
—Sherri Gordon, Parents, 20 Jan. 2026
See All Example Sentences for add-in
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Sophia Beams, Better Homes & Gardens, 28 Jan. 2026
Water is one of the best options, especially when your smoothie already includes fruit, protein, and other flavorful add-ins.
—Health, 28 Jan. 2026
Flavor add-ins, though, range from coconut to green apple, kiwi, lavender, passionfruit, vanilla and more.
—Brittany Anas, Denver Post, 27 Jan. 2026
Feel free to make unique colors, add scents, or even use other add-ins to customize your playdough.
—Sherri Gordon, Parents, 20 Jan. 2026
See All Example Sentences for add-in
Cite this Entry
“Add-in.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/add-in. Accessed 3 Feb. 2026.
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