Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “add-on”

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)
What is the pronunciation of add-on?
Add Cambridge dictionaries to your browser to your website

Definitions of “add-on” in other dictionaries

Word of the Day

first:

(a person or thing) coming before all others in order, time, amount, quality, or importance

Word of the Day

Countability – grammar codes

by Dom Glennon​​,
November 26, 2014
Advices and informations Have you ever noticed strange codes in square brackets on entries in Cambridge Dictionaries Online and wondered what they mean? These are grammar codes, giving you a brief summary of how that word behaves grammatically. More information can be obtained by hovering your cursor over the code, and there’s

Read More 

ped-text verb

November 24, 2014
to text someone while walking I’m ped-texting, I’m looking down at my phone, 75 percent of the time.

Read More