Content Types :
Content Types PAGEinformation that rarely changes, such as an "About us" section of a website.
STORYNews, announcements, and blog-like entries may all be created with a story entry.
Drupal Jargon :
Drupal Jargon BLOCKareas of content on your site
MODULEadded functionality for your site
NODEany content item (page, story, poll)
THEMEthe design & layout of your site