cast out

[MashaDit]

throw or cast away

[engladNak]

expel from a community or group

[Antoinegap]

To cast out generally refers to forcibly removing or expelling someone or something from a certain place or group. It can also mean to discard or throw away, as in casting out old items. Additionally, in mathematics, casting out refers to a process of removing digits or changing variables to simplify computations.