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
ABC News, 29 Mar. 2026
Uber and Rivian didn’t disclose how the new driverless vehicles will work, including having their own app or as a special request on the existing Uber app.
—Michael Butler, Miami Herald, 28 Mar. 2026
The app was released last April, to little fanfare.
—Oriana Van Praag, New Yorker, 28 Mar. 2026
Wait times listed on the MyTSA mobile app may not be accurate because TSA hasn’t been actively managing its sites during the shutdown.
—John Raby, Los Angeles Times, 28 Mar. 2026
See All Example Sentences for app
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Noun
But instead of a helpful app, the link downloaded spyware giving hackers access to the device's camera, location and all its data.
—ABC News, 29 Mar. 2026
Uber and Rivian didn’t disclose how the new driverless vehicles will work, including having their own app or as a special request on the existing Uber app.
—Michael Butler, Miami Herald, 28 Mar. 2026
The app was released last April, to little fanfare.
—Oriana Van Praag, New Yorker, 28 Mar. 2026
Wait times listed on the MyTSA mobile app may not be accurate because TSA hasn’t been actively managing its sites during the shutdown.
—John Raby, Los Angeles Times, 28 Mar. 2026
See All Example Sentences for app
Cite this Entry
“App.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/app. Accessed 2 Apr. 2026.
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