Sign off and Stepping down

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

Stepping down and sign off are semantically related In some cases you can replace phrase "Stepping down" with "Sign off", this terms are similar.

Stepping down noun - The act of abdicating.

Sign off and stepping down are semantically related in resign topic. Sometimes you can use "Sign off" instead a verb phrase "Stepping down".