The word "many-voiced" refers to a piece of music or a group of people who collectively create a complex sound with multiple voices. Synonyms for "many-voiced" include "multifaceted," "multilayered," "multidimensional," and "variegated." These terms describe a composition that has different layers of sound, textures, and tones. Another synonym for "many-voiced" is "polyphonic," which means music that has two or more independent melodies harmonically interwoven. The term "choral" is also a synonym for "many-voiced," referring to a group of voices singing together in a harmonic arrangement. Overall, these synonyms convey a sense of richness, depth, and complexity in music and art.