An example of harmony is when two people live together and don't fight.
An example of harmony is when two people sing contrasting parts of a duet that go together perfectly.
A harmony of the Gospels.
Origin of harmony
- Middle English armonie from Old French from Latin harmonia from Greek harmoniā articulation, agreement, harmony from harmos joint ar- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition