DictionaryAI

iron

EYE-urn/ˈaɪ(ə)ɹn/UKEYE-uhn/ˈaɪən/

Pluralirons (some meanings)

Verbirons, ironing, ironed

19 meanings of iron

Practice

  1. 1
    metalnoununcountable
    A hard, silvery-gray metal that rusts and is attracted by magnets, used to make steel (element Fe, atomic number 26); also this element as a dietary nutrient needed for healthy blood.

    Blacksmiths shaped iron into tools and weapons for centuries.

    Iron is attracted to magnets, which makes it easy to separate from other scrap.

    UsageNo a for the metal (some iron); an iron usually means the appliance. Foods are rich in iron.

  2. 2
    adjective
    Constructed from iron rather than another material such as wood, brass, or steel.

    The bridge rested on massive iron beams.

    Antique iron tools rust easily if left outdoors.

  3. 3
    heated appliancenouncountable
    A handheld appliance with a flat, heated metal base, used to press wrinkles from clothing.

    He set the iron on its heel to keep it from burning the shirt.

    A modern iron uses steam to smooth stubborn creases.

  4. 4
    press clothesverbtransitive
    To smooth clothes or other cloth by pressing them with a heated iron.

    He irons his uniform every Sunday evening.

    Could you iron these pillowcases while the water boils?

    UsageOften do the ironing; iron out is a separate phrase meaning settle a problem.

    Similarpress

    Oppositecrease, crumple, wrinkle

    Note

    Thomas Hardy's Tess of the d'Urbervilles (1891) sets it in the run of washday, with a frock "wrung up and ironed".

    Checked 2 Nov 2026 · 2 facts

    • Thomas Hardy wrote Tess of the d'Urbervilles, first published in 1891. en.wikisource.org
    • The novel's narration describes a frock as “wrung up and ironed” in a domestic laundry scene. en.wikisource.org
  5. 5
    hot toolnouncountable
    A metal tool that is heated for a specific task, such as styling hair, soldering, or branding.

    Let the iron heat up fully before you touch it to the circuit board.

    The ranch hands pulled the glowing irons from the fire and branded the calves one by one.

    UsageUsually named for its job: curling iron, soldering iron, branding iron. Without further context, the iron usually means the clothes iron.

    Note

    Many such tools are now steel or ceramic, but the old metal's name has stuck.

    Checked 2 Nov 2026 · 3 facts

  6. 6
    golfnouncountable or uncountable
    A golf club with a flat, angled metal head, used for shots of medium distance.

    The golfer reached for an iron rather than the driver.

    A well-struck iron put the ball within ten feet of the pin.

    UsageCounted freely: a set of irons, a 7-iron.

    Note

    Golfers name this club after its metal head. Robert Marshall's The Haunted Major (1902) sets the iron beside the brassey and the driver and says it "opened out quite a new field of practice". It is a club for the middle distance rather than the long drive.

    Checked 2 Nov 2026 · 3 facts

  7. 7
    strong-willedadjectivefiguratively
    Strong and unyielding, especially in will or determination; not easily bent or broken.

    The general ruled with iron discipline.

    Her iron determination carried the project through every setback.

    UsageBefore a noun: an iron will, an iron grip, an iron constitution.

    Similarinflexible, adamant

    Oppositeweak, lax, feeble

    Note

    Its near-synonyms adamant and adamantine rest on the same idea of a material nothing can break.

    Checked 2 Nov 2026 · 2 facts

Practice

Can you tell the meanings of iron apart? Answer 3 quick questions from this page, or write your own sentence and AI will check it.

Origin

It comes from Middle English iren, from Old English īsern, īren, and similar forms, which trace back through Proto-Germanic *īsarną to Proto-Celtic *īsarnom ("iron"), probably ultimately from a Proto-Indo-European root meaning "blood." It is related to Dutch ijzer, German Eisen, and Swedish järn.

Checked 1 Nov 2026 · 5 facts

  • Iron descends from Middle English iren and Old English īsern, īren and related forms, through Proto-Germanic *īsarną. en.wiktionary.org
  • Proto-Germanic *īsarną was borrowed from Proto-Celtic *īsarnom, meaning iron. en.wiktionary.org
  • The proposed ultimate origin is probably a Proto-Indo-European root meaning blood. en.wiktionary.org
  • Iron is related to Dutch ijzer and German Eisen. en.wiktionary.org
  • Iron is related to Swedish järn through their shared Proto-Germanic ancestor. en.wiktionary.org