Moving forward or backward among a set of things, to act on members successively. Can pertain to any kind of Emacs thing: buffers, windows, fonts, files, characters, completion candidates, colors,... whatever.

Moving forward or backward among a set of things, to act on members successively. Can pertain to any kind of Emacs thing: buffers, windows, fonts, files, characters, completion candidates, colors,... whatever. The action performed on the thing can be different for different kinds of things (e.g., visit a file, change to a font, preview an image,...).