Add-on

Pronunciation: /ˈæd- ˈɑn/

Add-on (noun)

  1. Something extra you can attach or include to improve a product or service.
  2. A separate part that you connect to a device to make it work in a new way.
  3. A program that adds new functions to an existing computer application.

Examples

  • The app includes an add-on for extra features.
  • The add-on adds an extra feature to the service.