What is the meaning of Couplen?

To marry or wed; to join in a matrimonial union.

To unite people in common cause or grouping; to connect.

To connect or fasten (one, two, or more things)

To link together; to deem as or make similar or connected.

To attach animals to a lead, string or harness.

To have sex; to copulate.

To attach support beams to a roof.

Source: wiktionary.org