The best replacement for directory is folder.

The best alternatives to directory are rated as following:
★★★★★  folder
★★★★★  ldap
★★★★  file
★★★  search engine
★★★  path
★★  location apache
★  directoryinfo
★  edirectory
★  file c#
★  subdomain
★  nds
★  open directory
★  novell
★  directorymatch
★  novell directory services
★  category search engines
★  file system
★  domain controller
  snooping
  openldap
  search engines
  application
  location
  junction
  utl_file_dir
  mandatory
  telephone directory
  active directory
  workgroup
  workgroups
  dns
  website
  nt

Your alternative for directory is not listed? Suggest!
Speaking about directory, one probably shouldn't forget about dns.

Other search terms related to directory and their ratings are:
★★★★★ dns
★★ millions of files
★★ domain controller
★★ windows server
★★ domain
★ dns server
★ dhcp
★ server
★ kerberos
htaccess
You have in mind a companion for directory and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of directory in all years. Click on graph for more.
directory
folder
ldap