: 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
What made you want to look up tune-up? Please tell us where you read or heard it (including the quote, if possible).
Take Our 10-Question Quiz
The commonly misspelled words quiz
How strong is your vocabulary?
The Vocab Quiz Game for iPhone & iPad
"Incredibly fun and addictive. And informative!" User Review, iTunes