subdirectory

noun
sub·​di·​rec·​to·​ry | \ ˌsəb-də-ˈrek-t(ə-)rē How to pronounce subdirectory (audio) , -dī-\
variants: or less commonly sub-directory
plural subdirectories also sub-directories

Definition of subdirectory

: an organizational directory on a computer that is located within another directory : subfolder The file you are looking for should have an extension of .EXE. Did you find it? If not, it may be in a different drive, directory or subdirectory.— Charles Weaver

First Known Use of subdirectory

1971, in the meaning defined above

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