noun: A mechanical puzzle with the shape of a cube, all sides able to be rotated, each side divided into 9 squares, the moving pieces allowing the cube to be rearranged. The goal is to get the colored squares aligned so that each side of the cube has a face of exactly one color.
noun: The original Rubik puzzle cube
noun: The brandname for the officially licensed Rubik cube
noun: Alternative letter-case form of Rubik's cube; genericization of the trademark [A mechanical puzzle with the shape of a cube, all sides able to be rotated, each side divided into 9 squares, the moving pieces allowing the cube to be rearranged. The goal is to get the colored squares aligned so that each side of the cube has a face of exactly one color.]