Jupiter

noun

Ju·​pi·​ter ˈjü-pə-tər 

1

: the chief Roman god, husband of Juno, and god of light, of the sky and weather, and of the state and its welfare and its laws compare zeus

2

: the largest of the planets and fifth in order from the sun see Planets Table

Examples of Jupiter in a Sentence

Recent Examples on the Web

Voyager 2 passed Jupiter, Saturn, Uranus, and Neptune before reaching interstellar space in 2018. — Kory Grow, Rolling Stone, 24 June 2026

Woods was arrested and charged with DUI with property damage and refusal submit a lawful test after his involvement in a two-car rollover crash on March 27 near his home on Jupiter Island, Florida. — Mark Harris, FOXNews.com, 23 June 2026

On Earth, clouds are made of water, and on Jupiter, they're made of ammonia, while much hotter worlds can have clouds of silicates. — Kierra Frazier, CBS News, 19 June 2026

In other injury news, McCullough said Junk threw a pitch design session at the team’s minor-league complex in Jupiter on Friday. — Jordan McPherson, Miami Herald, 19 June 2026

Word History

Etymology

Latin

First Known Use

13th century, in the meaning defined at sense 1

Kids Definition

Jupiter

noun

Ju·​pi·​ter ˈjü-pət-ər 

: the largest of the planets and fifth in order of distance from the sun see planet

Geographical Definition

Jupiter

geographical name

Ju·​pi·​ter ˈjü-pə-tər 

town on the Atlantic in southeastern Florida population 55,156