remedy vs rectify

remedy is a noun but rectify is not a noun.

Word	Noun	Adjective	Verb	Adverb
remedy	Yes	No	Yes	No
rectify	No	No	Yes	No

As verbs, remedy and rectify are synonyms defined as:

Other synonyms of remedy include amend, remediate, repair.

As verbs, rectify is a hypernym of remedy; that is, rectify is a word with a broader meaning than remedy:

Other hypernyms of remedy include correct, right.

remedy (noun)	rectify (noun)
act of correcting an error or a fault or an evil
a medicine or therapy that cures disease or relieve pain

remedy (verb)	rectify (verb)
provide relief for	set straight or right
set straight or right	make right or correct
	reduce to a fine, unmixed, or pure state; separate from extraneous matter or cleanse from impurities
	convert into direct current
	bring, lead, or force to abandon a wrong or evil course of life, conduct, and adopt a right one
	determine the length of