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English Dictionarycrack down phrasal verb (
see also crack)
to become more strict in dealing with a problem and punishing the people involved
crack down on
The government is determined to crack down on terrorism. The police are cracking down hard on violent crime. ⇒
crackdown [TahlilGaran] Dictionary of Contemporary English ▲
Idiomscrack downcrack down (on (someone/something))to take strong action to stop something bad from continuing. The university is taking steps to crack down on underage drinking on campus. Countries that used to ignore terrorist groups in their midst are starting to crack down. [TahlilGaran] English Idioms Dictionary ▲
crack down v. phr.,
informal To enforce laws or rules strictly; require full obedience to a rule.
After a speeding driver hit a child, the police cracked down. ■ Often used with "on".
Police suddenly cracked down on the selling of liquors to minors. The coach cracked down on the players when he found they had not been obeying the training rules. [TahlilGaran] English Idioms Dictionary ▲