The findings reported shed new light on how collocations are acquired by EFL learners, offering guidance on how they can best be taught. One major discovery is that there is a collocation lag as learners’ proficiency levels rise, which is associated with vocabulary increase, in particular semantic domains-a remarkable insight for second-language acquisition researchers, English teachers and EFL learners alike. As such, the book provides a panoramic view regarding L2 collocation acquisition, not only in terms of learners’ acquisition of different types of collocations, but in terms of the developmental patterns in L2 collocation learning. These collocations, collected from a one-million-learner corpus, were not confined to English as a foreign language (EFL) learners at a particular proficiency level, but also included learners at three levels. It presents original findings based on the largest collocation database to date, encompassing over 8,000 collocations: verb + noun, adjective + noun, and noun + noun. This book highlights research that expands on our knowledge of second- language collocation acquisition. The Routledge Handbook of Lexicography is essential reading for researchers and students working in this area. Analysing the theory and practice of compiling dictionaries within the digital era, the 47 chapters address the core issues of: The foundations of lexicography, and its interactions with other disciplines including Corpus Linguistics and Information Science Types of dictionaries, for purposes such as translation and teaching Innovative specialised dictionaries such as the Oenolex wine dictionary and the Online Dictionary of New Zealand Sign Language Lexicography and world languages, including Arabic, Hindi, Russian, Chinese, and Indonesian The future of lexicography, including the use of the Internet, user participation, and dictionary portals. This Handbook features key case studies and cutting-edge contributions from an international range of practitioners, teachers, and researchers. The Routledge Handbook of Lexicography provides a comprehensive overview of the major approaches to lexicography and their applications within the field.