Definition of "harmonize"

harmonize

/ˈhɑɹmənaɪz/

verb
third-person singular simple present harmonizes, present participle harmonizing, simple past and past participle harmonized
1. (intransitive) To be in harmonious agreement.
  Quotations
  This explanation of the clan totem harmonizes with the supposed effect of killing one of the totem species.
  1911, James George Frazer, The Golden Bough, volume 11, page 220
2. (intransitive, music) To play or sing in harmony.
3. (transitive, music) To provide parts to.
4. (transitive) To bring things into harmony, or to make things compatible.
5. (transitive) To provide the harmony for a melody.