(n.) The author or compiler of a lexicon or dictionary\.

allegorist annotator cicerone clarifier commentator critic cryptanalyst cryptographer cryptologist decoder definer demonstrator demythologizer dialectician diaskeuast dragoman editor emendator emender etymologer etymologist euhemerist exegesist exegete exegetist explainer explicator exponent expositor expounder glossarist glossographer go-between grammarian grammaticaster grammatist guide hermeneut interpreter lexicologist linguist linguistic scholar linguistic scientist linguistician metaphrast oneirocritic orthoepist paleographer paraphrast philologaster philologer philologian philologist phonemicist phonetician phoneticist phonologist scholiast semanticist semasiologist textual critic translator