The really long German words aren't really full concepts. They don't contain verbs and other parts of speech. They're really just a noun that has it's noun-adjectives put into it. My favorite really long German word is Lieblingsgeschwindikeitsbegrenzungshildpost. It means, roughly, favorite speed limit sign post. Each of these words can stand alone as a noun, but since they are being used to describe the ultimate noun (post) they are put into the word.