self-defence

noun
1
something you say or do in order to protect yourself when you are being attacked, criticized, etc.
دفاع شخصی, دفاع از خود, خوددفاعی, دفاع از خویش
2
the skill of being able to protect yourself from physical attack without using weapons
دفاع شخصی, مهارت دفاع شخصی
I'm taking classes in self-defence.
The women learn self-defence to protect themselves.