Nut or NUT may refer to: Nut (climbing), a metal wedge used as protection during rock climbing NUT Container, a free multimedia container format Nut (fruit), a type of fruit borne by certain flowering plants Nut (goddess), a goddess in Egyptian mythology Nut hand, in poker, the best possible 5-card poker hand in hold 'em games, also referred to as "The Nuts" Nut (hardware), a fastener with internal screw thread Nut (linear positioning), the moving element along a lead screw or ball screw… (More on Nut)