- the supreme deity of the ancient Romans: the god of the heavens and of weather.
- the planet fifth in order from the sun, having an equatorial diameter of 88,729 miles (142,796 km), a mean distance from the sun of 483.6 million miles (778.3 million km), a period of revolution of 11.86 years, and at least 14 moons. It is the largest planet in the solar system.
- a medium-range U.S. ballistic missile of the 1950s, powered by a single liquid-fueled rocket engine.
- (in Roman tradition) the king and ruler of the Olympian gods
- the largest of the planets and the fifth from the sun. It has 67 satellites and is surrounded by a transient planar ring system consisting of dust particles. Mean distance from sun: 778 million km; period of revolution around sun: 11.86 years; period of axial rotation: 9.83 hours; diameter and mass: 11.2 and 317.9 times that of earth respectively
