app

1 of 2

noun

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 appsThomas McNamee

app

2 of 2

abbreviation

1
apparatus
2
appendix
3
appliance

Examples of app in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Ensure your Wi-Fi router is using the latest software by logging into your router settings through a web browser (check the manual for the address) or its app. Kara McGinley, USA Today, 17 Apr. 2025 So far, more than 5,000 people have left the country on their own using the phone app, according to DHS data that Fox News reported. Amanda Rosa, Miami Herald, 17 Apr. 2025 One of them is sticking to meeting prospects in person at events or through friends versus dating apps. Elizabeth Ayoola, Essence, 17 Apr. 2025 Shortly after the election, Musk and Ramaswamy, at that time leaders of the Department of Government Efficiency (DOGE), reportedly discussed creating a mobile app for Americans to file their taxes free with the IRS. Kelly Phillips Erb, Forbes.com, 17 Apr. 2025 See All Example Sentences for app

Word History

First Known Use

Noun

1981, in the meaning defined at sense 1

Time Traveler
The first known use of app was in 1981

Cite this Entry

“App.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/app. Accessed 21 Apr. 2025.

Kids Definition

app

noun
ˈap
1
2
informal : appetizer

Medical Definition

app

1 of 2 abbreviation
appendix

APP

2 of 2 abbreviation
amyloid precursor protein

Legal Definition

App

abbreviation
Appeals

More from Merriam-Webster on app

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!