Coupler and Plug-in

Coupler noun - A mechanical device that serves to connect the ends of adjacent objects.

Plug-in and coupler are semantically related. In some cases you can use "Plug-in" instead a noun "Coupler".

Nearby Words: couple, coupling, coupled

Plug-in noun - A printed circuit that can be inserted into expansion slots in a computer to increase the computer's capabilities.

Coupler and plug-in are semantically related. Sometimes you can use "Coupler" instead a noun phrase "Plug-in".