When you click on Site Actions and select the More Options link, the Create dialog will appear. Anything in this list that is not a site or a page is a list.
The following is the screenshot of the Create dialog showing a selection of lists that we can create:
The following screenshot shows the Create dialog displaying a selection of the libraries which we can create:
As can be seen in the preceding screenshot, there are quite a few pre-defined lists and libraries. If there isn't one that meets our needs, then the Custom List ...