Word.ws English Dictionary

deep space

deep space adjective: of or in the area of space beyond the gravitational influence of Earth, or outside the Solar System.

Adjective

deep space (not comparable)

  1. Of or in the area of space beyond the gravitational influence of Earth, or outside the Solar System.
    • Bradley swore a mighty deep-space oath and braced himself against certain annihilation.1934 April, E. E. "Doc" Smith, “Triplanetary”, in Amazing Stories, volume 6, number 5, page 54
    • Human exploration of the solar system beyond Earth's orbit will entail many risks for the crew on these deep space missions.2005, Lawrence W. Townsend, “Implications of the space radiation environment for human exploration in deep space”, in Radiation Protection Dosimetry, volume 115, →DOI, pages 44–50

Noun

deep space (uncountable)

  1. All of space beyond the gravitational influence of Earth, or outside the Solar System, or distant from stars.
    • Part of the time he spent in the speedster dashing hither and yon. Most of it, however, he spent in the vastly more comfortable mauler; to the armored side of which his tiny vessel clung with magnetic clamps while he slept and ate, gossiped and read, exercised and played with the mauler's officers...1937 December, E. E. "Doc" Smith, “Galactic Patrol”, in Astounding Science-Fiction, volume 20, number 4, page 73
    • Unlike the Apollo astronauts, who were all white men, this mission sets a number of firsts: Mr. Glover of NASA will be the first Black man to venture into deep space and Ms. Koch of NASA will be the first woman to do so.2026 April 1, Kenneth Chang, “Artemis II Completes First Day of Its NASA Lunar Mission”, in The New York Times, →ISSN

deep space meaning in Hindi and Tamil

deep space in Hindi

All of space beyond the gravitational influence of Earth
गहन अंतरिक्ष gahan antrikṣ

deep space in Tamil

ஈர்ப்பிலாவெளி

Forms of deep space

alternative formdeep-space
alternative formdeepspace

Origin of deep space

Coined by American science fiction author E. E. Smith in 1934 in his novel Triplanetary, first serialized in Amazing Stories. After deep sea.

Questions about deep space

What does deep space mean?
Deep space means of or in the area of space beyond the gravitational influence of Earth, or outside the Solar System.
What is deep space in Hindi?
Deep space in Hindi is गहन अंतरिक्ष (gahan antrikṣ). See Deep space meaning in Hindi.
What part of speech is deep space?
Deep space can be an adjective or a noun.

Words near deep space in the dictionary

  1. deep sleeps
  2. deep song
  3. deep songs
  4. deep soul
  5. Deep South
  6. deep space
  7. deep square leg
  8. deep square legs
  9. deep squat
  10. deep squats
  11. deep squatted

Source and license

Adapted from Wiktionary: deep space (page history and authors); deep space (Tamil Wiktionary) (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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Pronunciation audio from Wikimedia Commons, each file under its own free license: en-us-deep space.ogg.

Cite this entry: “deep space.” Word.ws, https://word.ws/deep_space. Based on Wiktionary, CC BY-SA 4.0.