Blocks – Blocks are content elements that appear in the sidebar regions of your website. They can include dynamic server-generated content (example: Twitter feed) or custom content (example: a static image promoting an event).
Cascading Style Sheets/CSS – Predefined styles that tell your web browser how to render the visual components of your website.
Content Management System – Server-based software that allows you to manage and edit your site without any special software on your own computer.
Content Manager - Someone who creates, edits and updates content on a website.
Content type - In Drupal, each item of content is called a node, and each node belongs to a single content type, which defines various default settings for nodes of that type. Most of the time different content types have different data fields, layouts and workflows associate with that content type.
Developer - Someone who creates new functions or designs in Drupal via computer programming.
Modules – Drupal is powered by thousands of software projects called modules. These software modules can plug into your site and provide enhanced functionality.
Node – The node is your core unit of storing content. If you're inputting and saving content, you're probably saving it as a node.
Pages – Pages are static content items on your site that include custom content generated by your team (example: 'About' page).
Panels – Some site components can be broken into multiple sections to display dynamic content regions. For example, your homepage has several distinct panel panes that display news, photos and blog postings.
Path - The URL to find a web resource. Drupal has methods of creating automatic paths to content.
Role – A grouping assigned to user accounts that gives all the user accounts classified in that way the same set of permissions.
Site Administrator - A site administrator is a person with the technical skills to keep a Drupal website up to date, create user accounts, manage permissions, and add new functions to a Drupal site.
Taxonomy - A taxonomy is a collection of organizational keywords known in other systems as categories, tags, or metadata. It allows you to connect, relate and classify your website’s content.
Themes – A Content Management System separates content from the visual component called the Theme. You may select from several of our campaign based themes to customize the visual appeal of your selection.
Views - If you want to present your site content as anything other than individual pages accessible via a menu, you need the Views module.
For even more Drupal jargon, please visit: drupal.org/glossary