This is an example of a page. It differs from an article because it stays in the same place and appears in your site’s navigation (in most themes). It’s common to start with an “About Me”/“About Us” page, which introduces the site to visitors. It could look something like this:
Hi! I make deliveries during the day, but I study acting at night. This is my website. I live in Lisbon, I have a dog named Belarmino, and I like caipirinhas (and watching the grass grow).
… or something like this:
Gambozinos XPTO was founded in 1971 and has been providing its customers with the highest-quality gambuzinos ever since. Located in Gotham, Gambozinos XPTO employs more than 2,000 people and is a pillar of the community.
As a new WordPress user, you should go to your dashboard to delete this page and create new pages with your own content. Have fun!