an area in which something acts or operates or has power or control: | board that provides a flat surface on which artists mix paints and the range of colors used |
the bony cavity in the skull containing the eyeball | one of the rounded armor plates at the armpits of a suit of armor |
the (usually elliptical) path described by one celestial body in its revolution about another | the range of colour characteristic of a particular artist or painting or school of art |
the path of an electron around the nucleus of an atom | |
a particular environment or walk of life | |