sully vs defile

sully is not a noun while defile is a noun.

Word	Noun	Adjective	Verb	Adverb
sully	No	No	Yes	No
defile	Yes	No	Yes	No

As verbs, sully and defile are synonyms defined as:

sully and defile: make dirty or spotty, as by exposure to air; also used metaphorically

Other synonyms of sully include maculate, stain, tarnish.

As verbs, sully and defile are synonyms defined as:

Other synonyms of sully include cloud, corrupt, taint.

sully (noun)	defile (noun)
	a narrow pass (especially one between mountains)

sully (verb)	defile (verb)
charge falsely or with malicious intent; attack the good name and reputation of someone	spot, stain, or pollute
make dirty or spotty, as by exposure to air; also used metaphorically	make dirty or spotty, as by exposure to air; also used metaphorically
place under suspicion or cast doubt upon	place under suspicion or cast doubt upon