to not allow someone or something to stay in a particular place
banish somebody/something from/to something
I was banished to a distant corridor.
to send someone away permanently from their country or the area where they live, especially as an official punishment [= exile]
banish somebody from/to
Thousands were banished to Siberia.
to try to stop thinking about something or someone
banish the memory/thought/image etc (of somebody/something)
They tried to banish the memory from their minds.
—banishment noun [uncountable]