The definition of crackdown is the strict enforcement of specific rules.
If your boss is tired of everyone being late and makes an announcement that the next person who is late is going to be fired, this is an example of acrackdown.
An act or example of forceful regulation, repression, or restraint: a crackdown on crime.
Noun use of the verb “to crack down”
- In the years following the crackdown on striptease, some concessions were made to avoid trouble with the law.
- An IRS crackdown soon changed this view.