Definition of tune verb from the Oxford Advanced American Dictionary

     

    tune

     verb
    verb
    NAmE//tun//
     
    Verb Forms present simple I / you / we / they tune
     
    he / she / it tunes
     
    past simple tuned
     
    -ing form tuning
     
     
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  1. 1tune something to adjust a musical instrument so that it plays at the correct pitch to tune a guitar
  2. 2tune something to adjust an engine so that it runs smoothly and as well as possible
  3. 3 [usually passive] tune something (in) (to something) to adjust the controls on a radio or television so that you can receive a particular program or channel The radio was tuned (in) to a classical music station. (informal) Stay tuned for the news coming up next.
  4. 4tune something (to something) to prepare or adjust something so that it is suitable for a particular situation His speech was tuned to what the audience wanted to hear.
  5. Phrasal Verbstune in (to something)tune in to somebody/somethingtune outtune up
See the Oxford Advanced Learner's Dictionary entry: tune