Harmonise vs. Harmonize — What's the Difference?

Standard spelling of harmonize

To bring or come into agreement or harmony.

Go together;

(Music) To provide harmony for (a melody).

Write a harmony for

To be in agreement; be harmonious.

Sing or play in harmony

(Music) To sing or play in harmony.

Bring into consonance or relate harmoniously;

(intransitive) To be in harmonious agreement.

Bring into consonance or accord;

To play or sing in harmony.

Bring into consonance, harmony, or accord while making music or singing

To provide parts to.

(transitive) To bring things into harmony, or to make things compatible.

(transitive) To provide the harmony for a melody.

To agree in action, adaptation, or effect on the mind; to agree in sense or purport; as, the parts of a mechanism harmonize.

To be in peace and friendship, as individuals, families, or public organizations.

To agree in vocal or musical effect; to form a concord; as, the tones harmonize perfectly.

To adjust in fit proportions; to cause to agree; to show the agreement of; to reconcile the apparent contradiction of.

To accompany with harmony; to provide with parts, as an air, or melody.

Go together;

Write a harmony for

Sing or play in harmony

Bring into consonance or relate harmoniously;

Bring into consonance or accord;

Bring into consonance, harmony, or accord while making music or singing