Words are the building blocks of human communication and provide a strong foundation for the development of skilled language production and comprehension. Learning words in a language other than one's own requires long-term commitment and substantial engagement. This research monograph offers a summary of how learners of additional languages acquire vocabulary in instructed foreign language contexts and in English for Academic Purposes programs in the target language environment. After a thorough introduction of the most important constructs in the first chapter, the book provides a...