What is a subpage in WordPress?

Question

Can someone explain what a subpage is in wordpress? Does it look any different from a regular page? What is its purpose and what does it do?

Thank you

Answer 1

The only difference between a page and a subpage is that a subpage contains it's parent in the URL, as will any pages that sit as children to the child page...

For illustration.

Regular page:
example.com/a-page/

Subpage:
example.com/a-page/a-child-page/

Sub Subpage:
example.com/a-page/a-child-page/another-child/

and so on...

Aside from the URL there's no other differences i can think of.

Answer 2

Subpage is a page, but hierarchical depend from parent. When using automatically built menu will be arranged in this hierarchy.