Read the dictionary definition of iron. All definitions for this word.
1. home appliance consisting of a flat metal base that is heated and used to smooth cloth
2. a golf club that has a relatively narrow metal head
3. implement used to brand live stock
4. 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
5. press and smooth with a heated iron
1. press your shirts
2. she stood there ironing
6. extremely robust
1. an iron constitution
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Merriam-Webster definition of iron