This page is about the phrasal verb crack down
to start enforcing a law or a rule more strictly
- crack down There's too much cheating in exams, so the teachers are cracking down and expelling anyone who's caught.
- crack down on sb/sth The police are cracking down on drunk drivers, so if you drink before you drive you might end up in jail.
The prime minister has promised to crack down on
Contributor: Matt Errey