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(in-ter-plan-e-tar-y) 6 syllables

Definition

adjective. relating to the space between planets.

Example Sentence

The movie was about interplanetary travel.

More Example Sentences

Astronauts study interplanetary travel plans.

Synonyms

space; cosmic; celestial

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interplanetary
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Rhymes

  • planetary
  • sanitary

  • unsanitary

  • interplanetary
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