A container that organizes and groups related files together. Like a digital filing cabinet drawer where you keep similar documents organized.
You might have a 'Photos' folder containing all your pictures and a 'Work' folder containing all your business documents.
A folder is a general file-system concept, not a specific cloud service. Most cloud providers support folder-like organization in operating systems, file shares, and storage tools. In object storage, folders are often simulated using name prefixes rather than being real directories.