Add-on and Reserve

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

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

Reserve noun - The checking of one's true feelings and impulses when dealing with others.

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

Nearby Words: reserved, reservation, reserving, reservist