libeler vs traducer

libeler and traducer both are nouns.

Word	Noun	Adjective	Verb	Adverb
libeler	Yes	No	No	No
traducer	Yes	No	No	No

As nouns, libeler and traducer are synonyms defined as:

libeler and traducer: one who attacks the reputation of another by slander or libel

Other synonyms of libeler include backbiter, defamer, maligner, slanderer, vilifier.

libeler (noun)	traducer (noun)
one who attacks the reputation of another by slander or libel	one who attacks the reputation of another by slander or libel