Lexicography and terminography are related but distinct professions. Lexicography involves documenting all the words in a language's general vocabulary, while terminography focuses on systematically recording and defining the specialized terms used within specific subject fields or domains. Both compile dictionaries, but lexicographers take a descriptive approach to language use, while terminographers take a prescriptive approach to standardize concepts and their terms. The main differences lie in their starting points (language versus concepts), goals (documenting general words versus standardizing terms), and methods (starting with words versus starting with concepts).