1
: application sense 3
a word processing app
especially
: an application designed for a mobile device (such as a smartphone)
Health-insurance companies and government officials alike are drawn to the ability of smartphone apps to reach tough-to-access patients, to effect long-term lifestyle changes, and to do it all at a very low cost. —
Marcellus Hall
see also killer app
Marcellus Hall 2
informal
: appetizer
… the hidden video monitors that tell the cooks when the V.I.P.'s have finished their apps …—Thomas McNamee
Thomas McNamee1
apparatus
2
appendix
3
appliance
Examples of app in a Sentence
Recent Examples on the Web
Lisa Eadicicco, CNN Money, 8 Dec. 2025
The probe covers whether integrating Meta’s AI platform into the messaging app blocks competitors.
—semafor.com, 8 Dec. 2025
New apps to help users switch from Apple’s AI-poor devices.
—Andrew Nusca, Fortune, 8 Dec. 2025
The walking pad comes with a free companion app for Android and iPhone where users can set goals and track their daily steps as well as distance, speed, and calories burned.
—Sian Babish, PEOPLE, 8 Dec. 2025
See All Example Sentences for app
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Noun
Similar to Meta’s Ray-Bans, there’s a light on the prototype glasses that shows when the camera or AI image editing model is in use, and Gemini users can delete prompts and activity in the app.
—Lisa Eadicicco, CNN Money, 8 Dec. 2025
The probe covers whether integrating Meta’s AI platform into the messaging app blocks competitors.
—semafor.com, 8 Dec. 2025
New apps to help users switch from Apple’s AI-poor devices.
—Andrew Nusca, Fortune, 8 Dec. 2025
The walking pad comes with a free companion app for Android and iPhone where users can set goals and track their daily steps as well as distance, speed, and calories burned.
—Sian Babish, PEOPLE, 8 Dec. 2025
See All Example Sentences for app
Cite this Entry
“App.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/app. Accessed 13 Dec. 2025.
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