tune-up

[toon-uhp, tyoon-]
noun
1.
an adjustment, as of a motor, to improve working order or condition: The car needs a tune-up badly.
2.
Informal. a preparatory activity or warm-up, as before a contest or game: The track meet served as a tune-up for the Olympics.

Origin:
1945–50; noun use of verb phrase tune up

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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WordNet
tune-up

noun
1. exercising in preparation for strenuous activity [syn: warm-up
2. adjustments made to an engine to improve its performance 
WordNet® 3.0, © 2006 by Princeton University.
Cite This Source
Example sentences
The space telescope has had its last big tune-up, and is now starting the last years of its life.
Take your bike in for a tune-up and perhaps the riddle-loving mechanic will give you a clue.
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