toughen
US /ˈtʌf.ən/
UK /ˈtʌf.ən/
1.
endurecer, fortalecer
make or become stronger and more resilient
:
•
The training will toughen you up for the competition.
O treinamento vai te fortalecer para a competição.
•
His experiences in the army really toughened him.
Suas experiências no exército realmente o endureceram.