IRON

noun

1. A common, inexpensive metal, silvery grey when untarnished, that rusts, is attracted by magnets, and is used in making steel.
2. A metallic chemical element having atomic number 26 and symbol Fe.
3. Any material, not a steel, predominantly made of elemental iron.

verb

1. To pass an iron over (clothing or some other item made of cloth) in order to remove creases.
2. To shackle with irons; to fetter or handcuff.
3. To furnish or arm with iron.

adjective

1. Made of the metal iron.
2. Strong (as of will), inflexible.