app

noun5

1. •
   An application (program), especially a small one designed for a mobile device.

   • A visual tool can be thought of as a graphics app that generates most of your program's GUI code for you — 1999
2. •
   (informal) application (to a college etc.)

   • “Ky—please don't take this the wrong way—I actually have to wear a dress from our line. You know, to show off my marketing materials on my college app. So, I'm working on it with Hannah.” — 2011
3. •
   (informal) appetizer

   • The food is some of Breck's best: apps like sweet potato gnocchi with smoked chicken and sage cream[…] — 2007
4. •
   An appearance in a game.

   • That player has had ten apps this season.
5. •
   application (use, purpose; not a computer program)

noun2

1. •
   Abbreviation of appendix (text added to the end of a book or an article).
2. •
   Abbreviation of apprentice.

noun4

1. •
   Initialism of authorized push payment.
2. •
   Initialism of amyloid precursor protein.
3. •
   Initialism of acute-phase protein.
4. •
   Initialism of ammonium polyphosphate.

noun3

1. •
   Abbreviation of approach.
2. •
   [plural only] Abbreviation of appeals.
3. •
   Abbreviation of apparatus.