directory
in computing, a file system cataloging structure which contains references to other computer files, and possibly other directories
working directory
currently used hierarchical file system directory associated with a running process in an operating system
mount point
directory over which a filesystem is mounted
/etc
directory in UNIX filesystem
home directory
file system directory on a multi-user operating system containing files for a given user of the system; located at <root>\Users\<username> in Windows 7 and above; at /Users/<username> in macOS; and at /home/<username> in Linux or BSD
special folder
concept in Microsoft Windows
/bin
directory in UNIX filesystem
package
file system directory in Apple macOS that is normally displayed to the user by the Finder as if it were a single file
root directory
first or top-most directory in a hierarchy
boot directory
directory of files for booting the operating system
Program Files
standard folder in Microsoft Windows operating systems in which applications that are not part of the operating system are conventionally installed