Synonyms for (verb) debar

bar, debar, exclude

prevent from entering; keep out

He was barred from membership in the club

forefend, forfend, fend off, stave off, avert, avoid, obviate, debar, deflect, ward off, head off

prevent the occurrence of; prevent from happening

Let's avoid a confrontation; head off a confrontation; avert a strike

suspend, debar

bar temporarily; from school, office, etc.

LESS SPECIFIC: kick out, expel, throw out