Transform and transform

What’s the difference between Transform and transform? Transform is a class i guess, but what do i reffer to when i write something like this: transform.rotate…, what is transform in this case?

‘Transform’ is the class name - every object in your game has a component which is an instance of class Transform.

‘transform’ is a shortcut-property which refers to the specific component which is an instance of class Transform on the same object as your script. It’s equivalent to doing “GetComponent()”.