a spatial location defined by a real or imaginary unidimensional extent

a line of latitude at the north or south poles

either of two belts or regions near 30 degrees north or 30 degrees south; characterized by calms and light-baffling winds

either of two parallels of latitude about 23.5 degrees to the north and south of the equator representing the points farthest north and south at which the sun can shine directly overhead and constituting the boundaries of the Torrid Zone or tropics