The term MEDIUM OF COMMUNICATION refers to the various ways in which people can communicate with each other. The crossword solutions for this term are ORGAN (5 letters), RADIO (5 letters), VOICE (5 letters), and FILM (4 letters). An ORGAN is a musical instrument that produces sound by air being pushed through pipes. RADIO is a form of communication that uses electromagnetic waves to transmit signals over long distances. VOICE is the sound produced by humans when speaking or singing. FILM is a visual medium that uses recorded images to tell stories.