* Noun: This is the most common usage. It refers to a state of agreement, concord, or compatibility, often in music or relationships.
* Example: "There was a sense of harmony in the family."
* Verb: It can be used as a verb meaning "to be in harmony" or "to bring into harmony."
* Example: "The colors in the painting harmonized beautifully."
* Adjective: While less common, it can be used as an adjective meaning "harmonious" or "characterized by harmony."
* Example: "The harmony of the choir was breathtaking."
To determine the part of speech, consider its role within the sentence and how it functions grammatically.