Abstract
This paper examines both linguistic and pedagogical aspects of legal vocabulary instruction in English for Law courses. The research examines legal language through its formal, precise, and culturally specific nature by studying vocabulary classification, polysemy, synonymy, and lexical field structure in legal discourse. The study aims to develop an effective teaching method for legal lexis to improve students' subject-specific fluency, legal reasoning abilities, and English communicative competence. The research applies theoretical models from applied linguistics, legal semiotics, and ESP curriculum design to achieve its objectives. The research employs descriptive and comparative methods to study authentic legal texts, analyze legal genre terminology and lexical patterns, and develop practical teaching methods for Armenian higher education. The paper examines content-based instruction and conceptual field mapping as recommended instructional methods. The research demonstrates that successful legal vocabulary instruction requires cognitive, contextual, and functional methods that move beyond memorization to develop semantic understanding and cultural awareness. The interdisciplinary approach leads to legal English curriculum innovation through recommendations for developing vocabulary-intensive ESP syllabi.