"Enhancing Vocabulary through Phraseological Units" explores the pivotal role of phraseological units (PUs) in vocabulary acquisition and overall language proficiency. It examines various types of PUs, such as idioms, collocations, and fixed expressions, and emphasizes their significance in helping learners sound more fluent and native-like. It begins by defining phraseological units and explaining their importance in natural language use. PUs are multi-word expressions that function as single units of meaning, contributing to more expressive and precise communication. This study guide serves as a comprehensive resource for educators aiming to enhance their students’ vocabulary through the strategic use of phraseological units, ultimately improving their overall language proficiency and communication skills.