to send a person away permanently (from employment)

send away, remove; free

to remove (something); get rid of (something) because unnecessary or unwanted

remove, throw out

to prevent (a person) (from getting in somewhere)

expel, forbid

to drive out (e.g. an evil spirit) (from a person, place) by using prayers or magic

free from evil spirits

to send a person away, e.g. for doing wrong

discharge

to force a person to leave (a home, job etc)

expel, get rid of

a machine for forcing liquid, gas or air into, out of or through something

draw or push out