crack down

verb

1. to take severe measures (against); become stricter (with)

noun

1. severe or repressive measures

Idioms and Phrases

Act more forcefully to regulate, repress, or restrain. For example, The police cracked down on speeding. [1930s]

Related Words

• confine 
• constrain 
• control 
• curb 
• curtail 
• detain 
• deter 
• govern 
• hamper 
• hinder 
• inhibit 
• keep down 
• kill 
• limit 
• prevent 
• repress 
• restrict 
• subdue 
• suppress