Example : He was expelled from his native country.

Synonyms : kick out, throw out

Example : The chairman was ousted after he misappropriated funds.

Synonyms : boot out, drum out, kick out, oust, throw out

Example : Rout out the fighters from their caves.

Synonyms : rout, rout out

Example : Combustion products are exhausted in the engine.
The plant releases a gas.

Synonyms : discharge, eject, exhaust, release