Sign off and Throw in the towel

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

Throw in the towel and sign off are semantically related in resign topic. In some cases you can use "Throw in the towel" instead a verb "Sign off", when it comes to topics like give up responsibility.

Throw in the towel verb - Give up in the face of defeat of lacking hope; admit defeat.

Sign off and throw in the towel are semantically related in resign topic. Sometimes you can use "Sign off" instead a verb phrase "Throw in the towel", if it concerns topics such as give up responsibility.