killer app

noun

Definition of killer 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

First Known Use of killer app

1988


KILLER APP Defined for English Language Learners

killer app

noun

Definition of killer app for English Language Learners

  • : an extremely valuable or useful computer program


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