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tune-up /ˈtuːnˌʌp/  /Brit ˈtjuːnˌʌp/

  • noun
    plural -ups
    [count] chiefly US
    a process in which small changes are made to something (such as an engine) in order to make it work better
    My car needs a tune-up.
    an event or activity that helps you practice or prepare for a more important event or activity