Synonyms|4Antonyms|0|Broader|1Narrower|0Related|1
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Martian(noun, alien, extraterrestrial)
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creature from outer space(noun, expression, idiom, alien, extraterrestrial)
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extraterrestrial(noun, alien)
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intelligent life form(noun, expression, idiom, extraterrestrial)
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APASmart Define. (2013). space invader thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/space_invader/thesaurus/synonyms
ChicagoSmart Define. 2013. "space invader thesaurus" https://smartdefine.org/space_invader/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2013, space invader thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/space_invader/thesaurus/synonyms>.
MLASmart Define. "space invader thesaurus" 18 May 2013. Web. 21 September 2026. <https://smartdefine.org/space_invader/thesaurus/synonyms>