v. i. - To agree in action, adaptation, or effect on the mind; to agree in sense or purport; as, the parts of a mechanism harmonize.
v. i. - To be in peace and friendship, as individuals, families, or public organizations.
v. i. - To agree in vocal or musical effect; to form a concord; as, the tones harmonize perfectly.
v. t. - To adjust in fit proportions; to cause to agree; to show the agreement of; to reconcile the apparent contradiction of.
v. t. - To accompany with harmony; to provide with parts, as an air, or melody.