The activities overview is the screen that's displayed when you click the
When you hold down the
The dash is the list of your favorite applications that is shown on the left-hand side of the activities overview. This is sometimes referred to as the dock.
The hot corner is the corner at the top left of the screen. When you move the pointer there, the activities overview opens.
The System Settings are where you can change preferences and so on, similar to the Control Panel in Windows or the System Preferences in Mac OS. Click your name on the top-right of the top bar and select
The top bar is the bar that runs along the very top of the screen. The
You can put windows on different workspaces. They are a convenient way of grouping and separating windows.
The workspace switcher is the list of workspaces that is shown on the right-hand side of the