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killer app

American  
  1. an application that surpasses its competitors.


Etymology

Origin of killer app

1985–90

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Can TikTok's owner afford to lose its killer app?

From BBC • Apr. 21, 2024

For her, the new killer app is a very old one — playing great live shows.

From Los Angeles Times • Apr. 10, 2024

“We used to have a killer app every three to four years,” Mr. Manocha said.

From Washington Times • Oct. 5, 2023

There is no "killer app" for the device yet.

From Reuters • Jun. 2, 2023

Node:killer app, Next:killer micro, Previous:kill file, Up:= K = killer app The application that actually makes a sustaining market for a promising but under-utilized technology.

From The Jargon File, Version 4.2.2, 20 Aug 2000 by Steele, Guy L.

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