This text focuses on the exploration of semantic and lexical theory and its application to language teaching and language learning Learning the vocabulary of a new language requires learning its semantic and lexical systems. The focus of the hardback edition is the exploration of semantic and lexical theory and its application to language teaching and language learning. Following the format of its companion volume, Discourse and Language Education, winner of the Modern Language Association's Kenneth W. Mildenberger Prize, each chapter contains a wide variety of hands-on practice activities as well as suggestions for application and research.