Add-on definition
One thing added as a supplement to another.
noun
A hardware device, such as an expansion card, that is added to a computer to increase its capabilities.
noun
Something, as an option or accessory, that can be added to enhance the performance, appearance, etc. of something; specif., a piece of hardware or software designed to enhance a computer setup, application, etc.
noun
An additional amount or charge.
noun
Something to expand something else.
noun
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Something which can be appended to something else.
noun
(computing, hardware, software) A software extension or hardware peripheral that provides additional functions or customization for a core application or system.
noun
Alternative form of add-on.
The manufacturer sold many add ons for the basic camera.
The secretary offered a full typing and copying service for theses with the option of binding as an add on.
noun
To make an addition to something.
verb
Other Word Forms
Noun
Singular:
add-on
Plural:
add-ons