Term	Description	References
App	Software built using the Confluence platform for the purpose of integrating with or extending Confluence
Application	Refers to a running instance of an Atlassian product (Confluence, Jira, Hipchat, etc.)
Blueprint	A pattern for apps that provide a template for users to create new types of pages based on pre-defined and/or dynamic content	Blueprints pattern
Confluence Connect	The development framework used to create apps for Confluence Cloud	Confluence Connect
Custom content	A pattern for apps that introduce a new type of content to Confluence, with custom views that integrate with Confluence navigation and search	Custom content pattern
Extension	An app that extends Confluence with additional features	What can I build with Confluence Connect?
Extension point	An area of the user interface that allows your app to display information to end users in a constrained fashion (web items, for example)
Extension zone	An area of Confluence's user interface that your app can extend with additional elements. Your app is not technically constrained, but the design principles and guidelines must be followed to provide a consistent overall experience to the end user (web panels, for example).
Integration	An app that connects the data and/or user experience of an external service with Confluence	What can I build with Confluence Connect?
Macro	A pattern for apps that embed content in Confluence pages	Macros pattern
Page extension	A pattern for apps that provide contextual information and actions related to a Confluence page	Page extensions pattern
Search extension	A pattern for apps for including custom metadata in search and macro content filters	Search extensions pattern
Pattern	Common ways for you to extend the functionality of Confluence. They group together related extension points and design guidelines to help you provide a consistent experience for users.	Confluence Connect patterns
Theme	A pattern for apps that provide a custom look and feel for Confluence