- Iron when used in theatre is often used to refer to the Safety Curtain, which is usually steel, which drops at the front of the stage.
- It can also refer to the appliance used for ironing clothing used by wardrobe.
- It can also refer to the appliance used for curling hair by makeup.
- It can also be used as a short name for the electrical soldering iron tool.
- It is also a magnetic metal, commonly used in transformer cores and dimmer chokes.