1. to force someone to leave a place, especially as an official punishment
2. to get rid of something completely; to make something disappear

Examples

• The king banished the traitor from the kingdom.
• She was banished to a remote island for her crimes.
• He tried to banish all negative thoughts from his mind.
• The new medicine helped banish her headaches.
• The dictator banished his political opponents.
• She banished clutter from her home office.
• The bright lights banished the shadows from the room.