1 : (computer science) a small temporary window in a graphical user interface that appears in order to request information from the user; after the information has been provided the user dismisses the box with `okay' or `cancel'
2 : electrical device consisting of a flat insulated surface that contains switches and dials and meters for controlling other electrical devices
3 : a committee appointed to judge a competition
4 : a piece of cloth that is generally triangular or tapering; used in making garments or umbrellas or sails
