Yes, orbit is a Scrabble word!

Verb

1. Move in an orbit

Noun

1. The (usually elliptical) path described by one celestial body in its revolution about another

2. A particular environment or walk of life

3. An area in which something acts or operates or has power or control: "the range of a supersonic jet"

4. The path of an electron around the nucleus of an atom

5. The bony cavity in the skull containing the eyeball