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

July 28: SpaceX Falcon Heavy from KSC’s Launch Complex 39-A that launched a telecom satellite for Hughes Network Systems called the Jupiter 3 EchoStar XXIV at 11:04 p.m. —Richard Tribou, The Orlando Sentinel, 4 Aug. 2025

They were married five years later in a top-secret ceremony at his ranch in Jupiter, Florida. —Julia Moore, People.com, 4 Aug. 2025

On April 29, 1988, the couple exchanged vows on Reynolds’ 160-acre ranch in Jupiter, Florida. —Mike Barnes, HollywoodReporter, 3 Aug. 2025

The August 2025 marquee event, though, is an extra-special conjunction between Venus and Jupiter in the predawn sky. —Mike Lynch, Twin Cities, 3 Aug. 2025

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