rebuff vs repel

rebuff is a noun but repel is not a noun.

Word	Noun	Adjective	Verb	Adverb
rebuff	Yes	No	Yes	No
repel	No	No	Yes	No

As verbs, rebuff and repel are synonyms defined as:

Other synonyms of rebuff include snub.

As verbs, rebuff and repel are synonyms defined as:

Other synonyms of rebuff include drive back, fight off, repulse.

rebuff (noun)	repel (noun)
a deliberate discourteous act (usually as an expression of anger or disapproval)
an instance of driving away or warding off

rebuff (verb)	repel (verb)
reject outright and bluntly	reject outright and bluntly
force or drive back	force or drive back
	cause to move back by force or influence
	be repellent to; cause aversion in
	fill with distaste