Vocabulary provides a foundation from which grammar, phonology, and morphology emerge, and in a subject area it provides access to conceptual knowledge. Vocabulary selection for pedagogical purposes is therefore crucial.
2018, Clarence Green, James Lambert, “Advancing disciplinary literacy through English for academic purposes: Discipline-specific wordlists, collocations and word families for eight secondary subjects”, in Journal of English for Academic Purposes, volume 35, page 106