is a specific kind of: scientist.

is a broader term that covers: computational linguist | grammarian, syntactician | Hebraist | lexicographer, lexicologist | neurolinguist | phonetician | phonologist | psycholinguist | semanticist, semiotician | sociolinguist.

instances of which are: Bloomfield, Leonard Bloomfield | A. Noam Chomsky, Chomsky, Noam Chomsky | de Saussure, Ferdinand de Saussure, Saussure | Firth, J. R. Firth, John Rupert Firth | Grimm, Jakob Grimm, Jakob Ludwig Karl Grimm | Jakobson, Roman Jakobson, Roman Osipovich Jakobson | Jens Otto Harry Jespersen, Jespersen, Otto Jespersen | Edward Sapir, Sapir.

derivation: linguistics, philology | linguistics | linguistic.