rewriter vs rewrite

rewriter and rewrite both are nouns.

Word	Noun	Adjective	Verb	Adverb
rewriter	Yes	No	No	No
rewrite	Yes	No	Yes	No

rewriter (noun)	rewrite (noun)
someone who puts text into appropriate form for publication	something that has been written again

rewriter (verb)	rewrite (verb)
	write differently; alter the writing of
	rewrite so as to make fit to suit a new or different purpose