Orbit (noun)

1. The path followed by a planet, comet, satellite, or spacecraft in its journey around a star or planet.
2. The area around a star, planet, or other body in which a satellite, planet, or other object can move.
3. The path in which an electron moves around the nucleus of an atom.

Origin:

Mid 16th century: from latin orbita "course, track", from orbis "circle".

Examples:

1. The Earth's orbit around the Sun.
2. The satellite is in a low orbit.
3. The spacecraft was placed in orbit around Mars.
4. The comet's orbit takes it close to Jupiter.
5. The electron is in the third orbit around the nucleus.