Phrase guide

gas giant

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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No pronunciation record was provided for this word.

1

noun

Meaning 1

A large planet composed mostly of gaseous hydrogen and helium, along with methane and ammonia; possibly with a solid core.

Definition source: English Wiktionary via Wiktextract

Topics: astronomy, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: gas giant planet, Jovian planet

Antonyms: none provided

2

noun

Meaning 2

any of the four outermost planets in the solar system; much larger than Earth and gaseous in nature (like Jupiter)

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Jovian planet

Antonyms: none provided

Broader terms: planet, major planet

Narrower terms: Jupiter, Neptune, Saturn, Uranus

History

Etymology

From gas + giant, coined by American science-fiction writer James Blish and first attested in 1952 in a rewritten version of his 1941 short story Solar Plexus.

Across languages

Translations

22 source translations are retained for this English entry.

  • Chinese Mandarin: 氣態巨行星 /气态巨行星 (qìtài jùxíngxīng) — large planet of gas
  • Esperanto: gasogiganto — large planet of gas
  • Faroese: gassknøttur — large planet of gas
  • Finnish: kaasujättiläinen — large planet of gas
  • French: géante gazeuse — large planet of gas
  • German: Gasriese — large planet of gas
  • German: Gasplanet — large planet of gas
  • Greek: αέριος γίγαντας (aérios gígantas) — large planet of gas
  • Greek: πλανήτης γίγαντας (planítis gígantas) — large planet of gas
  • Hindi: गैस दानव (gais dānav) — large planet of gas
  • Hungarian: gázóriás — large planet of gas
  • Hungarian: gázbolygó — large planet of gas
  • Japanese: 巨大ガス惑星 (kyodai gasu wakusei) — large planet of gas
  • Polish: gazowy olbrzym — large planet of gas
  • Portuguese: gigante gasoso — large planet of gas
  • Russian: га́зовый гига́нт (gázovyj gigánt) — large planet of gas
  • Russian: га́зовая плане́та (gázovaja planéta) — large planet of gas
  • Slovene: plínski velikán — large planet of gas
  • Spanish: gigante gaseoso — large planet of gas
  • Swahili: pandikizi la gesi — large planet of gas
  • Swedish: gasjätte — large planet of gas
  • Ukrainian: га́зовий гіга́нт (házovyj hihánt) — large planet of gas