nullify vs avoid

nullify and avoid both are verbs.

Word	Noun	Adjective	Verb	Adverb
nullify	No	No	Yes	No
avoid	No	No	Yes	No

As verbs, nullify and avoid are synonyms defined as:

Other synonyms of nullify include annul, invalidate, quash, void.

nullify (verb)	avoid (verb)
make ineffective by counterbalancing the effect of	stay clear from; keep away from; keep out of the way of someone or something
show to be invalid	refrain from certain foods or beverages
declare invalid	declare invalid
	prevent the occurrence of; prevent from happening; to protect from or to keep away anything undesirable; to ward off
	refrain from doing something