excerpt (fragment, snippet) (tag)
Divides content into 2 parts: before <!--more--> and after it. Returns an array with the resulting parts.
Retrieves the excerpt of current or defined post. By default, should be used in WordPress Loop.
Whether the post has a custom excerpt.
Displays the excerpt (quote) of the post, with [...] at the end (but this is not a link to reading the full material).
Generates an excerpt from the content, if needed.