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.
The acquisition of a skill or a particular type of knowledge is the process of learning it or developing it. ...language acquisition. COBUILD Advanced English Dictionary.