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Synonyms

app

1 American  
[ap] / æp /

noun

  1. Digital Technology. a software application, often a small, specialized program for mobile devices.

    You’ll find numerous free photo editing apps in the app store on your smartphone.

    The word processing app that comes with the laptop isn’t adequate for our publishing needs.

  2. an application; a form to be filled out by an applicant.

    I'm working on my college apps.
app 2 American  
[ap] / æp /

noun

  1. Informal. an appetizer served before a meal.

app. 3 American  

abbreviation

  1. apparatus.

  2. apparent.

  3. appendix.

  4. applied.

  5. appointed.

  6. approved.

  7. approximate.

app British  
/ æp /

noun

  1. informal computing short for application program

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of app1

First recorded in 1985–90; shortening of application ( def. )

Origin of app2

By shortening

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

ExpressVPN provides native apps for most users and is available on a wide array of platforms, including routers.

From Salon

Russians moved to VPN services and flocked to the two remaining messaging apps providing broad access to independent news: Telegram and WhatsApp.

From The Wall Street Journal

Anthropic is racing to contain the fallout after accidentally exposing the underlying instructions it uses to direct Claude Code, the popular artificial-intelligence agent app that has won the company an edge with developers and businesses.

From The Wall Street Journal

Participants recorded everything they ate using a mobile app and weighed themselves daily with a wireless scale.

From Science Daily

For the first time, the census will be conducted digitally, with enumerators using mobile apps to collect and upload data.

From BBC

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.