rebutter vs refuter

rebutter and refuter both are nouns.

Word	Noun	Adjective	Verb	Adverb
rebutter	Yes	No	No	No
refuter	Yes	No	No	No

As nouns, rebutter and refuter are synonyms defined as:

rebutter and refuter: a debater who refutes or disproves by offering contrary evidence or argument

Other synonyms of rebutter include confuter, disprover.

rebutter (noun)	refuter (noun)
(law) a pleading by the defendant in reply to a plaintiff's surrejoinder	a debater who refutes or disproves by offering contrary evidence or argument
a debater who refutes or disproves by offering contrary evidence or argument