Bailment describes a legal relationship in common law where physical possession of personal property, or a chattel, is transferred from one person (the bailor) to another person (the bailee) who subsequently has possession of the property.
language acquisition. the process of learning a native or a second language. The acquisition of native languages is studied primarily by developmental psychologists and psycholinguists.
Second-language acquisition assumes knowledge in a first language and encompasses the process an individual goes through as he or she learns the elements of a new language, such as vocabulary, phonological components, grammatical structures, and writing systems.