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fundamental principle(expression, reason, importance, significance)
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fundamental reason(expression, reason, importance, significance)
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fundamental term(expression, reason, importance, significance)
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governing factor(expression, reason, importance, significance)
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initial cause(expression, reason, importance, significance)
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issue main reason(expression, reason, importance, significance)
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key aspect(expression, reason, importance, significance)
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key condition(expression, reason, importance, significance)
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key element(expression, reason, importance, significance)
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key enabler(expression, reason, importance, significance)
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key idea(expression, reason, importance, significance)
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key pillar(expression, reason, importance, significance)
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key player(expression, reason, importance, significance)
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key question(expression, reason, importance, significance)
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key reason(expression, reason, importance, significance)
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key role(expression, importance, significant, valuable)
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knockout punch(expression, reason, importance, significance)
1
main cause(expression, reason, importance, significance)
1
main condition(expression, reason, importance, significance)
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main criterion(expression, reason, importance, significance)
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APASmart Define. (2013). decisive factor thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/decisive_factor/thesaurus/synonyms
ChicagoSmart Define. 2013. "decisive factor thesaurus" https://smartdefine.org/decisive_factor/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2013, decisive factor thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/decisive_factor/thesaurus/synonyms>.
MLASmart Define. "decisive factor thesaurus" 18 May 2013. Web. 20 September 2026. <https://smartdefine.org/decisive_factor/thesaurus/synonyms>