In V4, "Posts" are the general term to describe the documents that can be viewed on a web site.  V4 has multiple "post types": Page - ...

Article posts are used for blog content.  Article posts can be reached via Articles in the admin sidebar. Articles support delayed publishing:

Team and Location posts can be viewed in V4 but they must be edited from PatientEngage.  Use the dashboard to access shortcuts to the site's location an...

Layout posts are a means to apply global content, content that must appear on more than one page of your site. Regions When you navigate to the Layout ...

Form posts support adding fields with the page builder. Each form will support settings for: Label - The text associated with the input field. Required...

Menu posts save your menu settings. In this post type you will find a "Menu" tab, from here you can select which posts display in your menu. ...

You can edit any page by navigating to the post type you wish to edit, for example Page, Article, Layout, etc, and then click on the page title in the posts...