n. In music:n. A style of composition in which one voice-part decidedly preponderates in interest over the others; homophony: opposed to polyphony, in which all the voice-parts are equally important.n. A piece written in monodic style; a melody, tune, or air, usually for the voice.n. A composition written in one part only; a solo. Also monophony.n. Monotonous sound; monotonousness of sound.n. A poem in which grief for the death of the subject of the poem is expressed.