A marquee may refer to any of the following:
1. A marquee tool is a GUI tool that selects items within a rectangular shape. The user clicks the left mouse button, then drags a corner of the rectangle until it encompasses the items they want to select. It's called a "marquee" because its border resembles the flashing lights around the marquee sign of a theater. The image to the right shows an example of how a rectangular marquee may look.
Advanced editing programs, such as Adobe Photoshop, offer other shapes like circles and ellipses.