1. Exercising in preparation for strenuous activity
   - warm-up, prolusion 
2. Adjustments made to an engine to improve its performance

1. Adjust for (better) functioning
   - tune 
2. Adjust the pitches of (musical instruments)
   - tune

Derived forms: tunes up, tune-ups, tuned up, tuning up

Type of: adjust, adjustment, correct, preparation, readjustment, readying, registration, set

Encyclopedia: Tune up

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