defend oneself
Ele quer se defender, e se vingar.
He wants to defend himself and get revenge.
— A Queda! As Últimas Horas de Hitler (2004)
Tom nem sequer tentou se defender.
Tom didn't even try to defend himself.
O Mike sabe se defender.
Mike knows how to defend himself.
Mas foi pra se defender, foi legítima defesa!
But it was to defend himself—it was self-defense!
— Cidade dos Homens (2007)
Tom não podia se defender.
Tom couldn't defend himself.
Você teve que se defender dele?
Did you have to defend yourself against him?
— Uma Mulher Fantástica (2017)