Although in Joomla, an article will certainly be at the center of a content page, there's bound to be much more to that page. Around the article there will be all kinds of other dynamic content—yes, those bits and pieces. Be that as it may, for the sake of simplicity we'll just use the word page (or content page) for articles now and then.

As long as we're aware that content pages may contain more than articles, that's OK, isn't it? Don't tell Joomla; it will be our secret.  ;)