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fifty
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APASmart Define. (2011). quinquagenarian thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/quinquagenarian/thesaurus/synonyms
ChicagoSmart Define. 2011. "quinquagenarian thesaurus" https://smartdefine.org/quinquagenarian/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2011, quinquagenarian thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/quinquagenarian/thesaurus/synonyms>.
MLASmart Define. "quinquagenarian thesaurus" 22 May 2011. Web. 1 October 2026. <https://smartdefine.org/quinquagenarian/thesaurus/synonyms>