Sign off and Windup

Sign off verb - Cease broadcasting; get off the air; as of radio stations.

Windup and sign off are semantically related. in end topic. In some cases you can use "Windup" instead a noun "Sign off", when it comes to topics like completion.

Windup noun - The last part of a process or action.

Sign off and windup are semantically related. Sometimes you can use "Sign off" instead a noun "Windup".