Ferrous metal!
Another name for iron oxide is rust.
Another name for small bits of iron is iron filings.
taconite
The steam locomotive.
ferrous sulfate
grid iron
Otto von Bismarck
choke
Another name for the Iron Age is the "Iron Age period," which is often characterized by the widespread use of iron for tools and weapons. In some contexts, it may also be referred to by specific regional names, such as the "Early Iron Age" or "Late Iron Age," depending on the timeline and geographic location being discussed.
Hemosiderosis is a close term to hemochromatosis. Iron overload is another name.
The mineral magnetite is also known as lodestone, a name also used for pieces of the ore that are natural magnets. Magnetite consists of iron (II,III) oxide with the formula Fe3O4.
Fe is Iron. It isn't 'Ir' because they got Fe from iron's Latin name, ferum. It also can't be 'Ir' because Ir is already the symbol for another element, iridium.