What is a Featured Image?
A featured image is a graphic that represents the contents of a blog post or page. It usually appears at the top of each post and in blog feeds, alongside post titles and excerpts.
More About Featured Images
WordPress enables you to set a featured image for posts and pages. This will then appear in the blog feed. Depending on the theme you’re using, the featured image might also appear at the top of the post.
The goal of a featured image is to provide users with context about a blog post. You can also use these images for stylistic purposes. Typically, pages don’t use featured images in WordPress.