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2 entries under expression topic. ×

1
hang tough(adjective, tough, sharp, sensible)
1
locked in(sharp, fixed, impassive, inflexible)
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APASmart Define. (2011). tough nut thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/tough_nut/thesaurus/synonyms
ChicagoSmart Define. 2011. "tough nut thesaurus" https://smartdefine.org/tough_nut/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2011, tough nut thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/tough_nut/thesaurus/synonyms>.
MLASmart Define. "tough nut thesaurus" 23 May 2011. Web. 23 September 2026. <https://smartdefine.org/tough_nut/thesaurus/synonyms>