expel

verb

1. 1

   eliminate (a substance)

   combustion products are exhausted in the engine

   the plant releases a gas

2. 2

   cause to flee

   rout out the fighters from their caves

3. 3

   remove from a position or office

   The chairman was ousted after he misappropriated funds

4. 4

   force to leave or move out

   He was expelled from his native country