outer space

English

Etymology

    From outer + space.

    Pronunciation

    • (UK) IPA(key): /ˌaʊtə ˈspeɪs/, [ˌaʊ̯tə ˈspɛɪ̯s]
    • (US) IPA(key): /ˌaʊtɚ ˈspeɪs/, [ˌaʊ̯ɾɚ ˈspeɪ̯s]
    • Audio (Canada):(file)

    Noun

    outer space (uncountable)

    1. A region outside of explored space.
    3. Any region of space beyond limits determined with reference to boundaries of a celestial system or body, especially the region of space immediately beyond Earth's atmosphere; sometimes, space beyond Earth's solar system.
      Synonyms: final frontier, high frontier, last frontier
      Astronauts train for years before traveling to outer space.
      The telescope captured incredible images from outer space.
      Science fiction often imagines alien civilizations in the depths of outer space.
      • 2025 March 8, Miranda Bryant, quoting Tom Dans, “‘It’s very unpredictable’: divided Greenland prepares to vote amid Trump-inspired existential crisis”, in The Observer‎[1], London: Guardian News & Media, →ISSN, →OCLC, archived from the original on 21 March 2025:
        Dans added: “We talk about outer space and trips to Mars and then when you realise Nuuk is a three-hour flight from New York City, or thereabouts, it gets interesting.”
    4. A bluish shade of black.
      outer space (Pantone):  
      outer space (Crayola):  

    Derived terms

    Translations

    See also

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