Diaphonic, a word often used in musical context, refers to two separate melodies played simultaneously. Synonyms for diaphonic could include polyphony, which refers to multiple independent melodies played at the same time, and counterpoint, which describes the relationship between distinct melodies. Other synonymous words for diaphonic can include harmonic, which refers to sounds occurring simultaneously, and dissonant, which refers to two or more sounds played concurrently that clash. The word diaphonic is rarely used in everyday language; however, its synonyms are frequently used in music, literature, and other forms of art to describe unique and complex areas.