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\ ˈtün-ˌəp 
, ˈtyün- \
, ˈtyün- \Definition of tune-up
1 : a general adjustment to ensure operation at peak efficiency
an engine tune-up
2 : a preliminary trial : warm-up
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More Definitions for tune-up
tune-up
nounEnglish Language Learners Definition of tune-up
chiefly US
: a process in which small changes are made to something (such as an engine) in order to make it work better
: an event or activity that helps you practice or prepare for a more important event or activity
See the full definition for tune-up in the English Language Learners Dictionary
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Time Traveler for tune-up
The first known use of tune-up was in 1933
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