orbit
noun
the (usually elliptical) path described by one celestial body in its revolution about another
“he plotted the orbit of the moon”
Synonymscelestial orbita particular environment or walk of life
“his social sphere is limited”
“it was a closed area of employment”
an area in which something acts or operates or has power or control:
“the range of a supersonic jet”
“a piano has a greater range than the human voice”
the path of an electron around the nucleus of an atom
Synonymselectron orbitthe bony cavity in the skull containing the eyeball
verb
move in an orbit
“The moon orbits around the Earth”
“The planets are orbiting the sun”
Source: WordNet 3.1, Princeton University
