a melody, especially one that characterizes a particular piece of music

she left the theatre humming a cheerful tune

adjust (a musical instrument) to the correct or uniform pitch

he tuned the harp for me

adjust (a receiver circuit such as a radio or television) to the frequency of the required signal

the radio was tuned to the BBC

adjust (an engine) or balance (mechanical parts) so that a vehicle runs smoothly and efficiently

the suspension was tuned for a softer ride

adjust or adapt (something) to a particular purpose or situation

the animals are finely tuned to life in the desert

tell (something) to (someone)

he starts tuning you stories about his youth