6 entries under idiom topic. ×

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first child
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first principle
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illegitimate child
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of a former period(expression, adjective, older)
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of an earlier time(expression, adjective, older)
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of long standing(expression, oldness)
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APASmart Define. (2015). firstborn thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/firstborn/thesaurus/synonyms
ChicagoSmart Define. 2015. "firstborn thesaurus" https://smartdefine.org/firstborn/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, firstborn thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/firstborn/thesaurus/synonyms>.
MLASmart Define. "firstborn thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/firstborn/thesaurus/synonyms>