1. (n.)iron a ductile, malleable, silver-white metallic element, used in its impure carbon-containing forms for making tools, implements, machinery, etc.
2. iron something hard, strong, unyielding, or the like: hearts of iron.
3. iron an instrument, utensil, weapon, etc., made of iron.
4. iron an appliance with a flatmetal bottom, used when heated, as by electricity, to press or smooth clothes, linens, etc.
5. iron any of a series of nine iron-headed golf clubs having progressively sloped-back faces, used for driving or lofting the ball.
19. (v.i.)iron to press clothes, linens, etc., with an iron.
20. iron iron out,
21. iron to resolve or clear away (difficulties, etc.).
Definition of 'iron'
Princeton's WordNet
1. (noun)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
5. iron very strong or determined his iron constitution
Definition of 'iron'
Webster Dictionary
1. (noun)iron the most common and most useful metallic element, being of almost universal occurrence, usually in the form of an oxide (as hematite, magnetite, etc.), or a hydrous oxide (as limonite, turgite, etc.). It is reduced on an enormous scale in threeprincipal forms; viz., cast iron, steel, and wrought iron. Iron usually appears dark brown, from oxidation or impurity, but when pure, or on a fresh surface, is a gray or whitemetal. It is easily oxidized (rusted) by moisture, and is attacked by many corrosive agents. Symbol Fe (Latin Ferrum). Atomic weight 55.9. Specific gravity, pure iron, 7.86; cast iron, 7.1. In magnetic properties, it is superior to all other substances
2. (noun)iron an instrument or utensil made of iron; -- chiefly in composition; as, a flatiron, a smoothing iron, etc