(n): a spatial location defined by a real or imaginary unidimensional extent
(n): any of the four areas into which a plane is divided by two orthogonal coordinate axes
(n): a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography)
(n): the area enclosed by two perpendicular radii of a circle
(n): a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography)
(n): a measuring instrument for measuring altitude of heavenly bodies
(n): instrument that shows the extent or amount or quantity or degree of something