Jupiter

noun
Ju·pi·ter | \ ˈjü-pə-tər \

Definition of Jupiter 

(Entry 1 of 2)

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

Jupiter

geographical name
Ju·pi·ter | \ ˈjü-pə-tər \

Definition of Jupiter (Entry 2 of 2)

town on the Atlantic in southeastern Florida population 55,156

First Known Use of Jupiter

Noun

13th century, in the meaning defined at sense 1

History and Etymology for Jupiter

Noun

Latin

Keep scrolling for more

Learn More about Jupiter

Statistics for Jupiter

Look-up Popularity

Time Traveler for Jupiter

The first known use of Jupiter was in the 13th century

See more words from the same century

Keep scrolling for more

More Definitions for Jupiter

Jupiter

noun

English Language Learners Definition of Jupiter

 (Entry 1 of 2)

: the planet that is fifth in order from the sun and that is the largest of the planets

Jupiter

noun

English Language Learners Definition of Jupiter (Entry 2 of 2)

: the planet that is fifth in order from the sun and that is the largest of the planets

Jupiter

noun
Ju·pi·ter | \ ˈjü-pə-tər \

Kids Definition of Jupiter

: the planet that is fifth in order of distance from the sun and is the largest of the planets with a diameter of about 89,000 miles (140,000 kilometers)

Keep scrolling for more

More from Merriam-Webster on Jupiter

Spanish Central: Translation of Jupiter

Nglish: Translation of Jupiter for Spanish Speakers

Britannica English: Translation of Jupiter for Arabic Speakers

Comments on Jupiter

What made you want to look up Jupiter? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to deposit or conceal in a hiding place

Get Word of the Day daily email!

Test Your Vocabulary

Name that Food Quiz

Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!