The term 'airwaves' refers to the medium of RADIO broadcasting, which has been used for decades to transmit audio signals over long distances. The crossword solutions for this term include 'ETHER' (5 letters), which is a medium through which electromagnetic waves travel; 'Roone' (5 letters), which is a reference to Roone Arledge, an American television sports and news executive; 'COKIE' (5 letters), which is a reference to COKIE Roberts, an American journalist and political commentator; and 'RADIO' (5 letters), which is a device used to receive and transmit RADIO waves. Together, these solutions provide insight into the history and technology of RADIO broadcasting.