Directory/dəˈrektəri/ Definition 1 of 2Pro Tip 1/3Organizational Tool Directories often help people quickly find contact details or information. Have a look at the company directory to get the manager’s extension number. Pro Tip 2/3Physical and Digital Directories exist both in print, like phone books, and online as databases. You can use an online business directory to find local services. Pro Tip 3/3Arranged Information Information in a directory is usually sorted alphabetically or by category. The tourist directory lists all the hotels by location and then by name.