app
noun(app)
application; especially : an application designed for a mobile device (such as a smartphone)
app
noun(app)
a computer program that performs a special function
app
abbreviation(app)
apparatus
app
abbreviation(app)
appendix
app
abbreviation(app)
appliance
app
noun(app)
a computer application of such great value or popularity that it assures the success of the technology with which it is associated; broadly : a feature or component that in itself makes something worth having or using
app
noun(app)
an extremely valuable or useful computer program