coupler

Meaning

Noun

• Someone who couples things together, especially someone whose job it is to couple railway carriages.
• Anything that serves to couple things together; but especially a device that couples railway carriages.
• A device that connects two keyboards of an organ together so that they play together.
• A device used to convert electronic information into audible sound signals for transmission over telephone lines.
• An electrical device used to transfer energy from one electric device to another, especially without a physical connection.

Origin

• From couple + -er.