To adjust a musical instrument to the correct or desired pitch. She took a few minutes to tune her guitar before the performance.
To adjust a radio or television set to receive a particular station or channel. He tuned the radio to his favorite station to listen to the morning news.
To adjust or adapt something to a particular situation or requirement. The engineer tuned the software to improve its performance on older computers.
To bring into harmony or agreement. The manager tuned the team's efforts to align with the company's goals.