The noun iron has 4 senses (first 2 from tagged texts)
1. (24) iron, Fe, atomic number 26 -- (a heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood)
2. (2) iron -- (a golf club that has a relatively narrow metal head)
3. iron, branding iron -- (implement used to brand live stock)
4. iron, smoothing iron -- (home appliance consisting of a flat metal base that is heated and used to smooth cloth)
Overview of verb iron
The verb iron has 1 sense (first 1 from tagged texts)
1. (2) iron, iron out, press -- (press and smooth with a heated iron; "press your shirts"; "she stood there ironing")
Overview of adj iron
The adj iron has 1 sense (first 1 from tagged texts)
1. (2) cast-iron, iron -- (extremely robust; "an iron constitution")