Meanings
How to pronounce "toughen up":
AU
To make or become mentally tougher.
Example Sentences
1
You need to toughen up if you want to succeed in competitive sports.
2
He had to toughen up and endure the arduous training regime.
3
I've been trying to toughen up my daughter so she can handle criticism better.
4
The coach's harsh words were meant to toughen up the team.
5
She had to toughen up and confront her fears.