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father
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father-in-law(noun, connection, relation, kin, relative)
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forefathers
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in-laws(noun, connection, relation, kin, relative)
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kinsman(noun, connection, relative, father, mother)
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kinswoman(noun, connection, relative, father, mother)
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APASmart Define. (2015). grandparents thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/grandparents/thesaurus/synonyms
ChicagoSmart Define. 2015. "grandparents thesaurus" https://smartdefine.org/grandparents/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, grandparents thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/grandparents/thesaurus/synonyms>.
MLASmart Define. "grandparents thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/grandparents/thesaurus/synonyms>