stand up for
US /stænd ʌp fɔr/
UK /stænd ʌp fɔr/

1.
defender, apoyar
to support or defend someone or something that is being criticized or attacked
:
•
You need to stand up for yourself and what you believe in.
Necesitas defenderte a ti mismo y lo que crees.
•
She always stands up for her friends when they are in trouble.
Ella siempre defiende a sus amigos cuando están en problemas.