An on-screen list of available functions, or operations, that can be performed currently. Depending on the type of menu, selection is accomplished by (1) highlighting the menu option with a mouse and releasing the mouse, (2) pointing to the option name with the mouse and clicking it, (3) highlighting the option with the cursor keys and pressing Enter, or (4) pressing the first letter of the option name or some designated letter within the name. See menu bar, menu pane, pull-down menu and Lotus menu.