THESAURUS
demonstrator
allegorist, annotator, cicerone, clarifier, commentator, critic, cryptanalyst, cryptographer, cryptologist, decoder, definer, demythologizer, diaskeuast, dragoman, editor, emendator, emender, euhemerist, exegesist, exegete, exegetist, explainer, explicator, exponent, expositor, expounder, go-between, guide, hermeneut, interpreter, lexicographer, metaphrast, oneirocritic, paraphrast, picket, picket line, picketer, scholiast, textual critic, translator
ROGET THESAURUS
demonstrator
Interpreter
N
interpreter, expositor, expounder, exponent, explainer,
demonstrator, scholiast, commentator, annotator, metaphrast, paraphrast, glossarist, prolocutor, spokesman, speaker, mouthpiece, dragoman, courier, valet de place, cicerone, showman, oneirocritic, (Edipus, oracle).