NOUN (2)

1. the same pronunciation for words of different origins;

2. part music with one dominant voice (in a homophonic style);

The Collaborative International Dictionary of English v.0.48:

Homophony \Ho*moph"o*ny\, n. [Gr. ?: cf. F. homophonie.]
   1. Sameness of sound.
      [1913 Webster]

   2. (Mus.)
      (a) Sameness of sound; unison.
      (b) Plain harmony, as opposed to polyphony. See
          Homophonous.
          [1913 Webster]