28 entries under expression topic. ×

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litmus paper(idiom, experiment)
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muffle furnace(idiom, furnace)
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rainy day(trial, suffering, misfortune)
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seething caldron(idiom, furnace)
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stir the embers(idiom, reproduction)
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turmeric paper(idiom, experiment)
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waffle irons(idiom, furnace)
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warming pan(idiom, furnace)
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APASmart Define. (2015). crucible thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/crucible/thesaurus/synonyms
ChicagoSmart Define. 2015. "crucible thesaurus" https://smartdefine.org/crucible/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, crucible thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/crucible/thesaurus/synonyms>.
MLASmart Define. "crucible thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/crucible/thesaurus/synonyms>