App Definition

ăp
apps
noun
A computer application.
American Heritage

Application, specif., one designed to be downloaded to a computer, smartphone, etc. and having specific Web interface functions.

Webster's New World
The definition of an app is short for application and is software for use on a smart phone or computer.
An example of an app is the Yelp app for the iPhone.
YourDictionary

(computing) An application (program), especially a small one designed for a mobile device.

Wiktionary

(informal) Appetizer.

Wiktionary
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abbreviation
Appendix.
Webster's New World
Applied.
Webster's New World
Appointed.
Webster's New World
Apprentice.
Webster's New World
Approved.
Webster's New World
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Other Word Forms of App

Noun

Singular:
app
Plural:
apps

Origin of App

  • Short for application

    From American Heritage Dictionary of the English Language, 5th Edition

  • Shortening.

    From Wiktionary

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