(n.) One who explains or expounds; a translator; especially, a person who translates orally between two parties.
Thesaurus Entries
allegorist, annotator, artist, artiste, cicerone, clarifier, commentator, concert artist, critic, cryptanalyst, cryptographer, cryptologist, decoder, definer, demonstrator, demythologizer, diaskeuast, dragoman, editor, emendator, emender, euhemerist, executant, exegesist, exegete, exegetist, explainer, explicator, exponent, expositor, expounder, go-between, guide, hermeneut, lexicographer, maestro, metaphrast, minstrel, minstrelsy, music maker, musician, oneirocritic, paraphrast, performer, player, scholiast, soloist, textual critic, translator, tunester, virtuosa, virtuoso
