banish

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To force to leave a country or place by official decree; exile.
2. v. To drive away; expel: We banished all our doubts and fears.

Century Dictionary and Cyclopedia

1. To outlaw; put under ban.
2. To condemn to exile by political or judicial authority; expel from or relegate to a country or a place, either permanently or for a time: often with objectives of both person and place: as, he was banished the kingdom; Ovid was banished to Tomi.
3. To send or drive away; expel; dismiss: with a person or thing as object: as, to banish sorrow; to banish an obnoxious person from one's presence or thoughts.
4. Synonyms Banish, Exile, Expel, expatriate, put away, are all used of removal by physical or moral compulsion; they all have a figurative as well as a literal use. To banish is, literally, to put out of a community or country by ban or civil interdict, and indicates a complete removal out of sight, perhaps to a distance. To exile is simply to cause to leave one's place or country, and is often used reflexively; it emphasizes the idea of leaving home, while banish emphasizes rather that of being forced by some authority to leave it: as, the bitterness of exile; banished to Siberia. Expel, literally, to drive out, means primarily to cast out forcibly and violently, and secondarily with disgrace: as, to expel from the chamber, or from college; he was expelled the country.

Wiktionary

1. v. To send someone away and forbid that person from returning.
2. v. To expel, especially from the mind.

GNU Webster's 1913

1. v. To condemn to exile, or compel to leave one's country, by authority of the ruling power.
2. v. To drive out, as from a home or familiar place; -- used with from and out of.
3. v. To drive away; to compel to depart; to dispel.

WordNet 3.0

1. v. ban from a place of residence, as for punishment
2. v. expel, as if by official decree
3. v. expel from a community or group
4. v. drive away