132 entries under expression topic. ×

5
wrought iron(idiom, thing, property, hardness)
4
heart of oak(idiom, strength, hardness)
4
iron out(verb, phrasal verb, press)
3
smoothing iron(noun, idiom)
2
branding iron(noun, idiom)
2
cast iron(idiom, hardness)
2
ferrous metal(noun, hard)
2
home appliance
1
bear down(verb, move, hold, smooth)
1
bear heavily(verb, move, hold, smooth)
1
buttoned down(adjective, strong, solid, stable)
1
cold fish(adjective, mean, hard, unfeeling)
1
force down(verb, move, hold, smooth)
1
golfing tool(noun, wedge)
1
hanging tough(adjective, mean, hard, rigid)
1
in chain saws
1
leg irons(noun, bond, metal)
1
pin down(verb, move, hold, smooth)
1
safe and sound(adjective, idiom, strong, solid)
1
set in stone(adjective, idiom, mean, hard)
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APASmart Define. (2015). iron thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/iron/thesaurus/synonyms
ChicagoSmart Define. 2015. "iron thesaurus" https://smartdefine.org/iron/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, iron thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/iron/thesaurus/synonyms>.
MLASmart Define. "iron thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/iron/thesaurus/synonyms>