still getting my feet wet with php and mysqli, have so much to learn, but at this point this question is one of my most important priorities.
I did some research abo
If I'm understanding you correctly, I believe you're waiting to create pages from the database Dynamically. You can use a get variable in the request http://yoursite.com/page.php?group=1.
Then in your code update your query to do:
$query = "SELECT word FROM demo WHERE group=".$_GET['group'];
That query is insecure, as any user could inject raw mysql into the $_GET['group'] variable.
$group = mysqli_real_escape_string($conn, $_GET['group']);
$query = "SELECT word FROM demo WHERE `group`='$group'";
This is much safer.