Meaning of the word "crack down" in English

What does "crack down" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

crack down

US /kræk daʊn/
UK /kræk daʊn/

Phrasal Verb

to take severe measures against something or someone

Example:
The police decided to crack down on illegal street racing.
The government plans to crack down on tax evasion.