app
noun
Definitions
noun
- 1.
(informal) A software application, especially one designed for a mobile device or computer.
Phrases & expressions
- •killer app — an application so useful that it proves the value of the underlying technology
- •app store — a digital marketplace for downloading applications
Related words
Etymology
Shortened form of application, which comes from Latin applicatio "a joining to, an attaching oneself to," from applicare "to attach to, join."