App Definition
Application, specif., one designed to be downloaded to a computer, smartphone, etc. and having specific Web interface functions.
(computing) An application (program), especially a small one designed for a mobile device.
(informal) Appetizer.
(military) Application (not a computer program)
Origin of App
Short for application
From American Heritage Dictionary of the English Language, 5th Edition
Shortening.
From Wiktionary
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