1. (n.) One versed in grammar, or the construction of languages; a philologist.

2. (n.) One who writes on, or teaches, grammar.

dialectician etymologer etymologist glossarist glossographer grammaticaster grammatist lexicographer lexicologist linguist linguistic scholar linguistic scientist linguistician orthoepist paleographer philologaster philologer philologian philologist phonemicist phonetician phoneticist phonologist semanticist semasiologist