Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “killer app”

killer app

noun [C]
 
 
(also killer ap, killer application) IT
computer software that is very popular or useful, especially software that is the reason people buy certain computer systems, mobile phones, etc.: Mobile access to social networking sites is the next killer app.
a use for a particular technology that becomes extremely popular and is the reason people want that technology: At the time they thought that e-learning would be the killer app of the Internet.
(Definition of killer app from the Cambridge Business English Dictionary © Cambridge University Press)
What is the pronunciation of killer app?
Add Cambridge dictionaries to your browser to your website

Definitions of “killer app” in other dictionaries

Translations of “killer app”

Word of the Day

bright spark

a person who is intelligent, and full of energy and enthusiasm

Word of the Day

Highly delighted, bitterly disappointed, ridiculously cheap: adverbs for emphasis.

by Liz Walter,
October 22, 2014
We often make adjectives stronger by putting an adverb in front of them. The most common ones are very and, for a stronger meaning, extremely: He was very pleased. The ship is extremely large. However, we don’t use very or extremely for adjectives that already have a strong meaning, for example fantastic,

Read More 

life tracking noun

October 20, 2014
the use of one or more devices or apps to monitor health, exercise, how time is spent, etc.

Read More