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killer application

British

noun

a highly innovative, very powerful, or extremely useful computer application; esp one sufficiently important as to justify purchase of the equipment or software

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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.

There is a new killer application that SpaceX can dominate if it moves quickly.

From Barron's • Dec. 15, 2025

We have consumer devices available now, but given the maturity of the technology, it would take around that long to get to that type of killer application that you and I just talked about.

From The Verge • Jan. 11, 2022

He says at the moment: "We're still looking for that absolute killer application of these virtual reality and augmented reality technologies."

From BBC • Oct. 29, 2021

Many scientists think that revealing new drugs and materials will be the first killer application of future quantum computers, which are being feverishly developed at universities and companies around the world.

From Science Magazine • Sep. 13, 2017

At the moment nobody knows what graphene’s killer application will be, but many of its properties point to its potential in electronics.

From Scientific American • Jun. 25, 2015

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023