In Plain English
It is like an answer card pinned near the front of a reference desk, with a route back to the source.
Why it matters
Understanding featured snippet helps you make clearer SEO decisions without mistaking one signal or metric for the whole picture.
Example
For a “how to” query, a search engine may show several ordered steps from an eligible guide and link to the page.
Common misunderstanding
A page cannot reserve a featured snippet, and its appearance can vary or disappear. Write clear, accurate answers for readers rather than manufacturing snippet-shaped filler.