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
tell (something) to (someone)
he starts tuning you stories about his youth