adjective
Definition: Relating to harmony, often used to describe sounds that are pleasing to the ear or elements that are well integrated together.
Example: The choir sang a harmonic piece that filled the church with beautiful sounds.
noun
Definition: A musical tone that is produced by vibrating strings or air columns, which is related to a fundamental tone and has a frequency that is a whole-number multiple of it.
Example: The musician played a harmonic on the guitar, creating a beautiful, ringing sound.