Extra and Retrofit

Extra noun - An interchangeable part or piece of equipment that is kept on hand for replacement of an original.

Retrofit and extra are semantically related. in addition topic. In some cases you can use "Retrofit" instead a noun "Extra".

Retrofit noun - A component or accessory added to something after it has been manufactured.

Extra and retrofit are semantically related. Sometimes you can use "Extra" instead a noun "Retrofit".

Nearby Words: retrofitted, retrofitting