| verb | go together “The colors don't harmonize” |
| verb | write a harmony for |
| verb | sing or play in harmony |
| verb | bring (several things) into consonance or relate harmoniously “harmonize the different interests” |
| verb | bring into consonance or accord “harmonize one's goals with one's abilities” |
| verb | bring into consonance, harmony, or accord while making music or singing |
| harmony | noun | a harmonious state of things in general and of their properties (as of colors and sounds); congruity of parts with one another and with the whole |
| accordant | adjective | being in agreement or harmony; often followed by `with'; -Thomas Hardy |
| accord | noun | sympathetic compatibility |
| concord | noun | a harmonious state of things in general and of their properties (as of colors and sounds); congruity of parts with one another and with the whole |
| agreeable | adjective | in keeping |
| harmonization | noun | a piece of harmonized music |
| harmonisation | noun | a piece of harmonized music |
| harmonizer | noun | a musician who sings or plays in harmony |
| harmoniser | noun | a musician who sings or plays in harmony |
| reconciliation | noun | getting two things to correspond |
| reconciler | noun | someone who tries to bring peace |
| chord | noun | a combination of three or more notes that blend harmoniously when sounded together |