4
heart of oak(expression, idiom, strength, hardness)
4
refresh(verb, encourage, strength, excite, prepare)
4
season(verb, dull, close, set, develop)
4
stiletto(noun, arms, cutter, sickle, blade)
4
support(noun, verb, fix, increase, encourage)
3
adamantine(adjective, strong, hard, tough, sturdy)
3
anneal(verb, support, close, set, fix)
3
bolo(noun, cutter, sickle, blade, machete)
3
brass(noun, alloy)
3
brick
3
bronze(noun, alloy)
3
callous(verb, dull, close, set, fix)
3
case harden(expression, idiom, strength)
3
concrete
3
cutlass(noun, arms, cutter, sickle, blade)
3
dirk(noun, arms)
3
ferrous(adjective, strong, hard, tough, sturdy)
3
flint
3
granite
3
make(verb, form, place, develop, plan)
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APASmart Define. (2016). steel thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/steel/thesaurus/synonyms
ChicagoSmart Define. 2016. "steel thesaurus" https://smartdefine.org/steel/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, steel thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/steel/thesaurus/synonyms>.
MLASmart Define. "steel thesaurus" 24 January 2016. Web. 28 September 2026. <https://smartdefine.org/steel/thesaurus/synonyms>