Coupling and Plug-in

Coupling noun - A place where two or more things are united.

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

Nearby Words: coupled, coupler

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

Coupling and plug-in are semantically related in link topic. Sometimes you can use "Coupling" instead a noun phrase "Plug-in", if it concerns topics such as connection.