a strong, hard magnetic silvery-grey metal, the chemical element of atomic number 26, much used as a material for construction and manufacturing, especially in the form of steel

a tool or implement now or originally made of iron

a caulking iron

a handheld implement, typically an electrical one, with a heated flat steel base, used to smooth clothes, sheets, etc.

a golf club with a metal head (typically with a numeral indicating the degree to which the head is angled in order to loft the ball)

a four-iron

a meteorite containing a high proportion of iron

the chemical element iron

(in the UK) further education