\ ˈap How to pronounce app (audio) \

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 While TikTok propelled her career, Rae has been pretty busy outside of her work on the social media app. Vanessa Etienne,, 15 Oct. 2021 Bible app was also taken down this week with the company claiming it was withdrawn by Apple. Fortune, 15 Oct. 2021 Coach's policy change follows a TikTok video by Anna Sacks, who goes by @thetrashwalker on the app and Instagram. Taylor Avery, USA TODAY, 15 Oct. 2021 The free-to-view advertising supported short film channels will initially be available in the U.K., Italy, Spain and throughout the Nordics, via the Rakuten TV branded remote-control and pre-installed app on smart TV devices. Naman Ramachandran, Variety, 15 Oct. 2021 In that time, Google has steadily enhanced the app’s feature set, making the current incarnation somewhat unrecognizable from the first iteration of Google Maps back in 2005. Yoni Heisler, BGR, 15 Oct. 2021 Use the Cardinal Cruiser escort service by calling (502) 852-6111 Download the free RAVE safety app for your iPhone or Android phone. Krista Johnson, The Courier-Journal, 15 Oct. 2021 Click the player or the app badges above to listen to the full story. Fifth & Mission Podcast, San Francisco Chronicle, 15 Oct. 2021 Anything your web or app offers, your QR code can point to. Expert Panel®, Forbes, 15 Oct. 2021

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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Dictionary Entries Near app

A power supply



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Statistics for app

Last Updated

18 Oct 2021

Cite this Entry

“App.” Dictionary, Merriam-Webster, Accessed 28 Oct. 2021.

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More Definitions for app



English Language Learners Definition of app

: a computer program that performs a special function : application sense 4


\ ˈap How to pronounce app (audio) \

Kids Definition of app

: a computer program that performs a special function : application sense 6



Medical Definition of app

 (Entry 1 of 2)




Medical Definition of APP (Entry 2 of 2)

amyloid precursor protein

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Legal Definition of App


More from Merriam-Webster on app

Thesaurus: All synonyms and antonyms for app

Nglish: Translation of app for Spanish Speakers

Britannica English: Translation of app for Arabic Speakers


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