Word.ws English Dictionary

sister planet

sister planet noun: a planet that shares similar physical characteristics, such as size, density and mass, with another planet.

Noun

sister planet (plural sister planets)

  1. a planet that shares similar physical characteristics, such as size, density and mass, with another planet

Forms of sister planet

pluralsister planets

Questions about sister planet

What does sister planet mean?
Sister planet means a planet that shares similar physical characteristics, such as size, density and mass, with another planet.
What part of speech is sister planet?
Sister planet is a noun.
What is the plural of sister planet?
The plural of sister planet is sister planets.

Words near sister planet in the dictionary

  1. sister of Eve
  2. Sister of Loretto
  3. Sister of Mercy
  4. Sister of the Holy Names of Jesus and Mary
  5. Sister of the Immaculate Heart of Mary
  6. sister planet
  7. sister planets
  8. sister republic
  9. sister republics
  10. sister ship
  11. sister ships

Source and license

Adapted from Wiktionary: sister planet (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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