Meaning of DIRECTORY in English
[noun] [C] - a book which gives a list of names, addresses, facts etc.a business directorya directory of hotelsLook up their number in the telephone directory.(UK) Directory Enquiries/(US and ANZ) Directory Assistance is a service which you can telephone in order to find out someone's telephone number.
Cambridge English vocab. Кембриджский английский словарь. 2012