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killer app

an application that surpasses its competitors.
Origin of killer app
1985-90 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for killer app
  • For many on campus, checking e-mail on the go is the first killer app of the hand-held world.
  • If this works nearly as well as it looks on the video demo, this could be a killer app.
  • In that world of high tech traffic control, benign dictatorship is the killer app, and democracy is a bug.
Contemporary definitions for killer app's 21st Century Lexicon
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