- scope, range, reach, orbit, compass, ambit - an area in which something acts or operates or has power or control: "the range of a supersonic jet"; "the ambit of municipal legislation"; "within the compass of this article"; "within the scope of an investigation"; "outside the reach of the law"; "in the political orbit of a world power"
--1 is a kind of extent
--1 has particulars:approximate range, ballpark; confines; contrast; internationality, internationalism; latitude; horizon, view, purview; sweep, expanse; gamut; spectrum; palette, pallet - setting, background, scope - the state of the environment in which a situation exists; "you can't do that in a university setting"
--2 is a kind of environment
--2 has particulars: canvas, canvass; showcase, show window - telescope, scope - a magnifier of images of distant objects
--3 is a kind of magnifier
--3 has parts:
--3 has particulars:aperture; finder, viewfinder, view finder; prism, optical prism astronomical telescope; collimator; solar telescope; transit instrument - oscilloscope, scope, cathode-ray oscilloscope, CRO - electronic equipment that provides visual images of varying electrical quantities
--4 is a kind of electronic equipment
--4 is a part of
--4 has parts: cathode-ray tube, CRTradar, microwave radar, radio detection and ranging, radiolocation; cardiac monitor, heart monitor; monitor, monitoring device