The term 'Arrow on a Screen' can be summarized as a CURSOR, which is a 6-letter word. A CURSOR is a visual indicator used to show the position of the user's input on a computer display or other electronic device. It is usually a small blinking line that can be moved around the screen using a mouse, trackpad, or other pointing device. Cursors are used to navigate and select text, images, and other elements on a computer or device.