verbs
bar temporarily; from school, office, etc.
prevent the occurrence of; prevent from happening
"Let's avoid a confrontation"; "head off a confrontation"; "avert a strike"
avert,
avoid,
debar,
deflect,
fend off,
forefend,
forfend,
head off,
obviate,
stave off,
ward off
prevent from entering; keep out
"He was barred from membership in the club"