: a serious attempt to punish people for doing something that is not allowed : an increased effort to enforce a law or rule
What made you want to look up crackdown? Please tell us where you read or heard it (including the quote, if possible).
Take our visual vocab quiz
A quick quiz about stuff worth knowing
The commonly misspelled words quiz
The Vocab Quiz Game for iPhone & iPad
"Incredibly fun and addictive. And informative!" User Review, iTunes