New answers tagged natural-language
Collection would be a lot better than Set. Google+ uses the term which means many users are familiar with the it. However, I would suggest you call it a Folder which can be named by the user. Since they are documents; a folder can have multiple files.
Your question is very broad and lacks context. But here are some suggestions: Call it what your users see or can expect to see. If it’s a categorized list of documents, call it Categories, when it’s a list of most recently viewed documents call it Recently viewed, is it a search result call it Results etc. You shouldn't just guess what your users will ...
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