A directory is a book which gives lists of facts, for example, people's names, addresses, and telephone numbers, or the names and addresses of business companies, usually arranged in alphabetical order.
双语例句
例：
a telephone directory.
电话簿。
2.?[C 可数名词] （计算机磁盘中包含一个或多个文件的）目录
A directory is an area of a computer disk which contains one or more files or other directories.
双语例句
例：
This option lets you search your current directory for files by date, contents, and document summary.