- Article
- Beginner
- 6 minutes read
- Reviewed August 3, 2026
WordPress uses a vocabulary that combines publishing, website administration, design and software development.
Learning the main terms makes documentation easier to follow and helps teams communicate without confusing content, presentation and functionality.
This article provides concise introductory definitions. Later sections of WordPress Manual explore many of these concepts in depth.
Administration and Website Areas
Dashboard
The Dashboard is the main administration home screen. It provides summaries and links to content, updates and other areas of the website.
The word is also used informally to refer to the entire WordPress administration area.
Administration Area
The password-protected interface used to manage WordPress. Its default URL commonly ends in /wp-admin/.
Available screens depend on the user’s capabilities, active plugins and website configuration.
Frontend
The public-facing website or interface experienced by visitors.
A frontend can be rendered by a WordPress theme or built as a separate application that retrieves WordPress data.
Backend
A broad term for administration and server-side systems. In WordPress conversations, it often means the administration area, although technically it can also include PHP, the database, APIs and infrastructure.
Toolbar
The horizontal administration toolbar shown to logged-in users when enabled. It provides quick links to common actions on the frontend and in administration.
Content Terms
Post
A standard WordPress content record commonly used for dated articles, news or blog entries.
Posts can be assigned categories and tags and normally appear in chronological archives.
Page
A standard content type used for relatively stable content such as About, Services or Contact pages.
Pages can be hierarchical, allowing parent and child relationships.
Post Type
A data classification that defines a kind of content stored in WordPress.
Posts and pages are post types. Attachments, revisions and navigation items are also represented through the post system. Plugins and custom code can register custom post types.
Custom Post Type
A post type registered beyond the standard content types provided by WordPress.
Examples include products, events, properties, documentation articles or team members.
Status
A value describing a content record’s publication state, such as draft, pending review, published, private or scheduled.
Revision
A saved historical version of content. Revisions can help compare and restore previous changes.
Excerpt
A short summary of a content item. It may be written manually or generated automatically, depending on context and configuration.
Featured Image
An image associated with a post or other supported content type. Themes and plugins decide where and how it appears.
Classification and Metadata
Taxonomy
A system used to classify and group content.
Categories and tags are built-in taxonomies. Custom taxonomies can represent topics, locations, product types or other classifications.
Term
An individual item inside a taxonomy.
For example, “Security” could be a term in a Documentation Topic taxonomy.
Category
A built-in hierarchical taxonomy normally associated with posts. Categories can have parent and child terms.
Tag
A built-in non-hierarchical taxonomy normally associated with posts. Tags are generally used for flexible labels without parent-child structure.
Metadata
Additional data associated with an object such as a post, user, comment or taxonomy term.
Metadata can store values that do not belong in the main title or content field.
Custom Field
A user-facing or developer-defined field that stores additional metadata, such as a price, date, location or external identifier.
Field Group
A collection of related custom fields displayed or managed together.
Design and Presentation
Theme
A package that controls the presentation of a WordPress website through templates, styles and related assets.
Classic Theme
A theme that primarily uses PHP template files and traditional theme systems.
Block Theme
A theme designed around blocks, block templates, template parts, Global Styles and the Site Editor.
Template
A file or block structure used to render a particular type of page or request.
Template Part
A reusable section of a template, such as a header or footer.
Template Hierarchy
The rules WordPress uses to decide which template should render a request.
Block
A content or interface unit used by the WordPress editor. Examples include paragraphs, headings, images, buttons, columns and query loops.
Pattern
A predefined arrangement of blocks that can be inserted and customized.
Synced Pattern
A reusable pattern whose changes can be reflected everywhere the synced instance is used.
Global Styles
A block-theme system for controlling site-wide typography, colors, layout and block appearance.
Widget
A legacy or compatibility term for small interface components placed in widget areas such as sidebars. Block-based systems increasingly use blocks in these areas.
Extensions and Code
Plugin
A package of code that adds or changes WordPress functionality.
Must-Use Plugin
A plugin placed in the mu-plugins directory and loaded automatically. It is not managed through the normal activation interface.
Hook
A point in WordPress execution where custom code can run or modify data.
Action
A type of hook used to run functions at a particular point.
Filter
A type of hook used to receive, modify and return data.
Shortcode
A text-based placeholder that WordPress expands into generated output. Shortcodes predate blocks and remain common in many plugins.
API
An application programming interface: a defined way for software components to communicate.
REST API
A WordPress interface that exposes data and operations through HTTP endpoints, commonly using JSON.
URLs and Publishing
Domain
The human-readable address used to reach a website, such as example.com.
URL
The complete address of a resource, including protocol, domain and path.
Slug
The URL-friendly identifier for a content item or term, often based on its title.
Permalink
The permanent public URL assigned to a content item.
Rewrite Rule
A rule that maps a readable URL structure to the internal request WordPress processes.
Archive
A page that lists multiple content items, such as a category, date, author or custom post type archive.
Front Page
The page displayed at the main website URL. It can show latest posts or a selected static page.
Posts Page
A selected page used as the location for the main posts index when a static front page is configured.
Users and Access
User
An account that can sign in to WordPress.
Role
A named collection of capabilities, such as Administrator, Editor or Author.
Capability
A specific permission that allows an action, such as editing posts, publishing pages or managing users.
Authentication
The process of confirming identity, usually through login credentials or another approved method.
Authorization
The process of determining what an authenticated user is permitted to do.
Infrastructure and Maintenance
Hosting
The server environment and related services used to make a website available.
Database
The structured data store used by WordPress for content, settings, users and other records.
PHP
The server-side programming language on which WordPress core is primarily built.
MySQL and MariaDB
Database management systems supported by WordPress.
HTTPS
The secure version of HTTP, using TLS encryption between browser and server.
Cache
Stored reusable data or output that reduces repeated processing and can improve performance.
Backup
A recoverable copy of website files, database data or both.
Staging Website
A separate environment used to test changes before applying them to the live production website.
Update
A newer version of WordPress core, a theme or a plugin. Updates may contain new features, compatibility changes, bug fixes or security fixes.
Frequently Asked Questions
Is a post type the same as a post?
A post is one specific built-in post type. “Post type” is the broader system used for posts, pages and custom content types.
Is a taxonomy the same as a category?
A category is one built-in taxonomy. Taxonomy is the general classification system.
Is a role the same as a permission?
A role is a collection of capabilities. A capability is the individual permission checked by WordPress.
Is a theme only visual?
Presentation is its primary responsibility, but themes can also include code and features. Permanent website functionality should still be separated carefully.