This course introduces linguistics as the scientific study of human language and examines the fundamental concepts, characteristics, branches, and analytical levels of language. It covers the origin and properties of human language, phonetics, phonology, word formation, morphology, syntax, semantics, pragmatics, discourse analysis, language acquisition, and sociolinguistics. Students learn to describe and analyse English language data, including the production and classification of speech sounds, word structure and formation, sentence structure, meaning, language use in context, discourse, language variation, and language-learning processes. Through collaborative case-based learning, students apply linguistic concepts to analyse English learners’ language problems and formulate relevant, inclusive, and context-sensitive pedagogical responses. The course develops critical and systematic thinking, promotes respect for linguistic diversity, and supports quality and equitable English language education in relation to SDG 4 and SDG 10.