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.
This is distinguished from second-language acquisition, which deals with the acquisition (in both children and adults) of additional languages. The capacity to successfully use language requires one to acquire a range of tools including phonology, morphology, syntax, semantics, and an extensive vocabulary.