Iron
Part of speech: adjective
Definition: Made of the metal iron. Strong (as of will), inflexible.
Part of speech: noun
Definition: A metallic chemical element having atomic number 26, and symbol Fe. A tool or appliance made of metal, which is heated and then used to transfer heat to something else; most often a thick piece of metal fitted with a handle and having a flat, roughly triangular bottom, which is heated and used to press wrinkles from clothing, and now usually containing an electrical heating apparatus. shackles. A handgun. A dark shade of the colour/color silver. A male homosexual. A golf club used for middle-distance shots.
Part of speech: verb
Definition: To pass an iron over (clothing or some other item made of cloth) in order to remove creases.
Example sentence: Sometimes I had to spend a whole day mixing a boiling mass with a heavy iron rod nearly as large as myself. I would be broken with fatigue at the day's end. Other days, on the contrary, the work would be a most minute and delicate fractional crystallization, in the effort to concentrate the radium.
Cast-iron
Part of speech: adjective
Definition: Made of cast iron.
Part of speech: noun
Definition: A hard and brittle, but strong, alloy of iron, carbon, and silicon, formed by casting in a mould.