ward off vs forbid

ward off and forbid both are verbs.

Word	Noun	Adjective	Verb	Adverb
ward off	No	No	Yes	No
forbid	No	No	Yes	No

As verbs, forbid is a hypernym of ward off; that is, forbid is a word with a broader meaning than ward off:

ward off: prevent the occurrence of; prevent from happening; to protect from or to keep away anything undesirable; to ward off
forbid: keep from happening or arising; make impossible

Other hypernyms of ward off include foreclose, forestall, preclude, prevent.

ward off (verb)	forbid (verb)
avert, turn away, or repel	command against
prevent the occurrence of; prevent from happening; to protect from or to keep away anything undesirable; to ward off	keep from happening or arising; make impossible