To "cast out" or "drive out" someone or something means to force that person or thing to go away.
* The term "cast" means the same thing as "throw." To cast a net means to throw the net into the water.
* In a figurative sense, "cast out" or "cast away" someone can mean to reject that person and send him away.
## Translation Suggestions: ##
* Depending on the context, other ways to translate this could include, "force out" or "send away" or "get rid of."
* To "cast out demons" could be translated as "cause the demons to leave" or "drive the evil spirits out" or "expel the demons" or "command the demon to come out."