n.) A sound; a note; a tone.
n.) A rhythmical, melodious, symmetrical series of tones for one voice or instrument, or for any number of voices or instruments
n.) a popular or well-known song
n.) the state of being adjusted to proper or accurate musical pitch.
v. t.) To sing with melody or harmony.
v. t.) To put into a proper state or disposition.
v.) to adjust
He began to whistle a tune.
The clarinet was out of tune.
She played a tune on the piano.
Can you get the piano in tune?
This song is based on an old folk tune.
He had his clarinet tuned.
The colors are perfectly tuned to each other.
The radio was tuned to the BBC World Service.
Before he began to play, Harry tuned up his banjo.
That disc jockey always plays the latest tunes.
One of my favorite tunes was playing on the radio.
Stop by and learn a little while you enjoy the tunes.
The President is out of tune with public opinion.
I wanted the musician to play some sad tune on his flute.