The tag in HTML is used to provide a caption or a brief explanation for a figure element in the document, such as an image, a diagram, a code listing, etc. The tag must be used as a child of a tag.
Here’s an example how to use it:
``` A beautiful scenery of a forest
```
The tag represents the figure element, including the image and the caption. The tag is for the image itself, and the tag holds the caption for that image. The text within the tag will be displayed underneath the image as a description or a caption.
Remember that figcaption tag should be used either as the first or last child of the figure tag. It can’t be placed in the middle of other child elements of the figure tag.