This document provides an overview of key terms and concepts in linguistics. It discusses the main branches of phonetics including articulatory phonetics, acoustic phonetics, and language-specific phonetics. Phonology is introduced as the study of sound systems in language. Morphology and syntax are summarized as the study of morphemes and sentence structure, respectively. Semantics and pragmatics refer to the study of meaning and language use. The document also outlines the main schools of thought in formal linguistics, including traditional grammar, structural linguistics, and generative/transformational grammar developed by Noam Chomsky.