The crossword solution for the term 'Sound Portion' is AUDIO, which is a five-letter word. AUDIO refers to sound that is recorded or transmitted, and it is used in many different contexts. AUDIO can be used to refer to music, spoken words, or any other type of sound. AUDIO is also used in the production of films, television shows, and video games. AUDIO is an important part of modern media, and it is used to create immersive experiences for viewers and listeners.