(n): an established line of travel or access
(n): a particular environment or walk of life
(n): the totality of surrounding conditions
(n): an area in which something acts or operates or has power or control: "the range of a supersonic jet"
(n): the distance or area or volume over which something extends
(n): the path of an electron around the nucleus of an atom
(n): an established line of travel or access
(n): the bony cavity in the skull containing the eyeball
(n): (anatomy) a natural hollow or sinus within the body
(v): move in an orbit
(v): move in circles
Also the part of the skull in which the eye sits.