Add-on and Supporting

Add-on noun - Something that is not necessary in itself but adds to the convenience or performance of the main piece of equipment.

Supporting and add-on are semantically related. In some cases you can use "Supporting" instead an adjective phrase "Add-on".

Supporting adjective - Serving to give support to the truth or factualness of something.

Add-on and supporting are semantically related. Sometimes you can use "Add-on" instead an adjective "Supporting".

Nearby Words: support, supported, supporter, supportive, supportable