\ˈap \

Definition of app 

(Entry 1 of 2)

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

2 informal : appetizer … the hidden video monitors that tell the cooks when the V.I.P.'s have finished their apps— Thomas McNamee

Definition of app (Entry 2 of 2)

1 apparatus

2 appendix

3 appliance

Examples of app in a Sentence

Recent Examples on the Web: Noun

Starting Monday, the special train passes will go on sale at all ticket windows and through the Ventra app, according to the commuter railroad. Mary Wisniewski,, "Metra to sell ride passes for Lollapalooza," 12 July 2018 The service, which offers reservations through a smartphone app, gives drivers in Honolulu 25 pick-up and drop-off locations in the city, and a choice of 70 Toyota and Lexus vehicles, including Priuses and Camrys. Brittany Shoot, Fortune, "Toyota Launches a Car-Sharing Subscription Service for Hawaii," 11 July 2018 Target will notify you through the app or via email when your order is ready. Jeanne Houck,, "You can kick it at the curb with Target's new 'Drive Up' service," 11 July 2018 The scooters, which are found through an app that uses GPS, do not have docking stations and can be left anywhere after a rider is done using one. Diana Dombrowski, Milwaukee Journal Sentinel, "City of Milwaukee files lawsuit over Bird scooters," 7 July 2018 By the time heavy construction begins on the $2.3 billion widening of Interstate 66 outside the Capital Beltway next year, commuters in western Prince William County will be able to sign up and pay for van-pool services through a smartphone app. Washington Post, "In Prince William, a high-tech plan to get more commuters out of their cars," 7 July 2018 Starting tomorrow, please send us chat through the MoviePass app showing the full receipt including the movie title, showtime, and theater for a reimbursement. Andrew Liptak, The Verge, "MoviePass says it will refund users who were affected by last night’s outage," 7 July 2018 Anyone with information about the identity of the suspect is urged to call the TIPS Hotline at 816-474-8477 or through the app at Max Londberg And Kaitlyn Schwers, kansascity, "Slain UMKC student from India shot in back fleeing from restaurant robber, worker says," 7 July 2018 Ofo is a company that shares bikes through an app for a fee in the East Valley, including Tempe, Arizona. Jessica Boehm, azcentral, "Phoenix and Scottsdale move to regulate bike-sharing," 7 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'app.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of app


1981, in the meaning defined at sense 1

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Statistics for app

Last Updated

6 Oct 2018

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Time Traveler for app

The first known use of app was in 1981

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English Language Learners Definition of app

computers : a computer program that performs a special function

Medical Definition of app 

(Entry 1 of 2)


Medical Definition of APP (Entry 2 of 2)

amyloid precursor protein

Legal Definition of App 


More from Merriam-Webster on app

Nglish: Translation of app for Spanish Speakers

Britannica English: Translation of app for Arabic Speakers

Comments on app

What made you want to look up app? Please tell us where you read or heard it (including the quote, if possible).


evasion of direct action or statement

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