banish

(v) 1. to send someone away, especially from their country/home town, and not allowed to return

e.g. They were banished from the library for making so much noise.

synonyms: exile, deported, thrown out, ban

(v) 2. get rid of (something unwanted)

e.g. “Banish all thoughts of losing from your heads!” The coach shouted at the basketball team.

synonyms: dispel, dismiss, rid

other word forms: banishment (n)