debar vs head off

debar and head off both are verbs.

Word	Noun	Adjective	Verb	Adverb
debar	No	No	Yes	No
head off	No	No	Yes	No

As verbs, debar and head off are synonyms defined as:

debar and head off: prevent the occurrence of; prevent from happening; to protect from or to keep away anything undesirable; to ward off

Other synonyms of debar include avert, avoid, deflect, fend off, forefend, forfend, obviate, stave off, ward off.

debar (verb)	head off (verb)
prevent from entering; keep out	prevent the occurrence of; prevent from happening; to protect from or to keep away anything undesirable; to ward off
prevent the occurrence of; prevent from happening; to protect from or to keep away anything undesirable; to ward off
bar temporarily; from school, office, etc.