📂→📄

#nested #folder #directory #subfolder #subcategory

🗂️{📄¹📄²📄³}

#categorization #classification #folder term #file structure #grouping files #subcategory #organization

🗂️→📂→📄

#hierarchy #structure #organization #subcategory #classification #levels #breakdown #taxonomy

🧱>▪️

#subcategory #part of whole #smaller piece #sub-level #section part