Definition of directory noun from the Oxford Advanced Learner's Dictionary

directory

noun
dəˈrektəri
 
; dəˈrektəri
 
dɪˈrektəri
 
; dɪˈrektəri
 
daɪˈrektəri
 
; daɪˈrektəri
 
plural directories
 
1 a book containing lists of information, usually in alphabetical order, for example people's telephone numbers or the names and addresses of businesses in a particular areaa telephone/trade directorya directory of European Trade Associations2 a file containing a group of other files or programs in a computer