85 entries under basic topic. ×

0
core(adjective, original, essential, fundamental)
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ideal(adjective, absolute, fundamental, key)
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name of the game(expression, adjective, idiom, absolute)
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perfect(adjective, absolute, fundamental, key)
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straightforward(simple, uncomplicated)
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APASmart Define. (2015). underlying thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/underlying/thesaurus/synonyms
ChicagoSmart Define. 2015. "underlying thesaurus" https://smartdefine.org/underlying/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, underlying thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/underlying/thesaurus/synonyms>.
MLASmart Define. "underlying thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/underlying/thesaurus/synonyms>