From Longman Dictionary of Contemporary Englishnight safeˈnight safe noun [countable] British English BFBa special hole in the outside wall of a bank into which a customer can put money or documents safely when the bank is closed SYN night depository American EnglishFrom Longman Business Dictionarynight safeˈnight safe British EnglishBANKING a special container built into the outside wall of a bank into which a customer can put money or documents when the bank is closedSYNnight depository AmE → safe
