Question:What do you mean by Featured Images and Excerpts?
Answer
Featured Images: The featured image (formerly known as the post thumbnail) is an image that represents a post which might be shown by itself, depending on how a theme displays posts.Excerpts: An excerpt is, as the box says in WordPress, a summary of a post. Excerpts are shown with a continuation string. By default, ‘[...]’ is appended to your excerpt text, which is 55 words long.