One great feature of Vim (and probably other editors) is ākeyword completionā: Type the beginning of a word, then press Ctrl-N and Vim will give autocompletion options by scanning all the words in the current file. For example, when I now type āauā and then Ctrl-N, it will suggest āautocompletionā.
This is so very useful when writing text / prose. Itās especially useful for German text with all those long words like āInformationssicherheitsbeauftragerā. I use this feature all time and I sorely miss it when Iām forced to use some other crappy editor. š©