Toughen | Mean of toughen in English Dictionary

/ˈtʌfən/

• Verb
• to make (something) stricter or to become stricter
1. The government is toughening antidrug laws.
2. The antidrug laws have been toughened up recently.
3. The antidrug laws have toughened up recently.
• to make (someone) physically or emotionally stronger or to become physically or emotionally stronger
1. The experience toughened him.
2. The experience toughened him up.
3. You need to toughen up if you want to succeed in this business.