We depend on some odd terminology when working with WordPress to refer to WordPress-specific tools, methods, and areas of the website. Some more general terms related to the internet and website management are also useful to know.

The following terms come from the full WordPress Glossary in the WP Codex, which you can refer to for many additional terms and concepts.

Back end
As opposed to front end, the back end is the area that authorized users can sign into to add, remove, and modify content on the website. This may also be referred to as “admin” or “the administration area”.
Category
Each post in WordPress can be filed under one or more categories. Categorization allows posts to be grouped with others of similar content and aids in the navigation of a site.
Compare to: Tag
CMS or Content Management System
A Content Management System, or CMS, is software for facilitating the maintenance of content, but not design, on a web site. WordPress is an example of a content management system.
Dashboard
In WordPress the Dashboard is the main administration screen for the site. It summarizes information about the site, and also external information, in one or more widgets that the Dashboard user can enable, disable, and move around.
Database
A database in computing terms is software used to manage information in an organized fashion. WordPress uses the MySQL or MariaDB relational databases management system for storing and retrieving the content of your blog, such as posts, comments, and so on.
Front End
The front end is what your visitors see and interact with when they come to the website, at https://hrs.wsu.edu.
Gutenberg
Gutenberg is a newly developed, block-oriented editor that will eventually replace the current editor textbox on the Edit Post/Page admin. It uses “blocks” to create all types of content, replacing a half-dozen inconsistent ways of customizing WordPress, bringing it in line with modern coding standards, and aligning with open web initiatives. These content blocks transform how users, developers, and hosts interact with WordPress to make building rich web content easier and more intuitive, democratizing publishing — and work — for everyone, regardless of technical ability.
Menu
Menus are lists of links to pages and posts that appear on WordPress websites.
Meta Box
A meta box is a draggable box shown on the post/page editing screen. Its purpose is to allow the user to select or enter information in addition to the main post content (which is also technically a meta box) or otherwise manage the status of the post or page. These boxes will vary for pages, posts, and custom post types, and may include “Content,” “Publish,” “Page Template,” and “Category.” The information entered in these boxes should be related to the post/page in some way.
Page
A Page is often used to present “static” information about yourself or your site. A good example of a Page is information you would place on an About Page. A Page should not be confused with the time-oriented objects called posts. Pages are typically “timeless” in nature and live “outside” your blog.
The word “page” has long been used to describe any HTML document on the web. In WordPress, however, “Page” refers to a very specific feature first introduced in WordPress version 1.5.
Compare to: Post
Plugin
A Plugin is a group of PHP functions that can extend the functionality present in a standard WordPress weblog. These functions may all be defined in one php file, or may be spread among more than one file. Usually, a plugin is a PHP file that can be uploaded to the “wp-content/plugins” directory on your webserver, where you have installed WordPress. Once you have uploaded the plugin file, you should be able to “turn it on” or Enable it from the “Plugins” page in the administration interface of your weblog. The WordPress source code contains hooks that can be used by plugins.
Post
Also known as “articles” and sometimes incorrectly referred to as “blogs.” In WordPress, “posts” are similar to news updates, in that they provide time-specific information. An example may be an announcement about an upcoming event vs. a page providing contact information.
Compare to: Page
Post Type
Post type refers to the various structured data that is maintained in the WordPress posts table. Native (or built-in) registered post types are post, page, attachment, revision, and nav-menu-item. Custom post types are also supported in WordPress and can be defined with register_post_type(). Custom post types allow users to easily create and manage such things as portfolios, projects, video libraries, podcasts, quotes, chats, and whatever a user or developer can imagine.
Screen
In WordPress a screen is a web page used for managing part of a weblog (site) or network. The term ‘screen’ is used to avoid confusion with ‘page’, which has a specific and different meaning in WordPress. For example, the web page used to manage posts is known as the Posts Screen.
Shortcode
A Shortcode is a technique for embedding a snippet of PHP code into the body of a page or other content item.
Tag
A Tag is a keyword that describes all or part of a Post. Think of it like a Category, but smaller in scope. A Post may have several tags, many of which relate to it only peripherally. By default, tags can be assigned only to the Post and custom post types. Many people confuse Tags and Categories, but the difference is easy: Categories generally don’t change often, while your Tags usually change with every Post and are closer to the topic of the Post.
Compare to: Category
Taxonomy
A taxonomy allows for the classification of things. In WordPress, there are two built-in taxonomies, categories and tags. These taxonomies help further classify posts and custom post types. Also, custom taxonomies can be defined.
See also: Category, Tag
Template
In WordPress a template is a file that defines the pieces of the web pages generated by a theme. What users see on the front end is content retrieved from the database and displayed according to rules defined in one or more templates. For example, there is typically a template for the header area at the top of the web pages, a template for the content, a template for the sidebars, and so on. The templates are like building blocks that make up the complete web page.
URL
Commonly called a web address, a URL (or Uniform Resource Locator) is a reference to a web resource like a page or a downloadable document that specifies its location on a computer network and a mechanism for retrieving it. You can think of a URL like the path to a file on a personal computer. Each page or other resource is stored on a remote computer (a server hostname) in a folder (directory). The URL is the full path to the file in the directory on the remote computer. A typical URL on the HRS site could have the form: https://hrs.wsu.edu/training/orientation-schedule/. This indicates a protocol (https:// for secure HTTP); a server hostname (hrs.wsu.edu); a directory path (/training/, which could be multiple levels deep); and finally the resource itself, in this case a page titled “Orientation Schedule” (orientation-schedule/.
Web page
A web page (or webpage) is a single hypertext document connected to the web. Each web page has a specific address — its URL. A website typically consists of many individual web pages linked together.
Website
A website (or web site) is a collection of web pages and other resources all identified by a common domain name. An example is the HRS website, which consists of all pages at the hrs.wsu.edu domain.