add-on noun - definition in the Business English Dictionary - Cambridge Dictionaries Online

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English definition of “add-on”

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add-on

noun [C]
 
 
/ˈædɒn/
something extra that is added to a product to make it better: DVDs often include bonus endings and other add-ons.an add-on to sth Many companies offer legal expenses cover as an add-on to home insurance policies. add-on parts/products/services
IT a piece of computer equipment or software that is added to a computer so that the computer can do more or different things: an add-on to sth It would require an add-on to a browser to make it all work. add-on devices/features/software
(Definition of add-on noun from the Cambridge Business English Dictionary © Cambridge University Press)
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