Synonyms|4Antonyms|0|Broader|0Narrower|0Related|0
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intergalactic(adjective, interstellar)
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interplanetary(adjective, interstellar)
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interstellar
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space(adjective, interstellar)
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APASmart Define. (1970). in outer space thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/in_outer_space/thesaurus/synonyms
ChicagoSmart Define. 1970. "in outer space thesaurus" https://smartdefine.org/in_outer_space/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 1970, in outer space thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/in_outer_space/thesaurus/synonyms>.
MLASmart Define. "in outer space thesaurus" 1 January 1970. Web. 21 September 2026. <https://smartdefine.org/in_outer_space/thesaurus/synonyms>