Retransmission is the act of resending or repeating a message or signal that has already been transmitted before. Synonyms for retransmission include rebroadcast, retransmit, re-air, re-send, relay, and repackage. These words describe the practice of resending information through electronic and digital communication channels such as TV, radio, internet, and wireless networks. Retransmission is often used to ensure that information is received by its intended audience, particularly when transmission errors or interruptions occur. In the modern digital age, the need for reliable and efficient retransmission methods has become increasingly important to ensure accurate and timely communication.