to support or defend sb/sth :
Always stand up for your friends.
You must stand up for your rights.
She had learnt to stand up for herself.
to support or defend sb/sth :
Always stand up for your friends.
You must stand up for your rights.
She had learnt to stand up for herself.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005