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PlainSpell

fire box

noun

fire box is a noun meaning “The hearth of a metal-forging shop; the forge of a smithy” (English Wiktionary, September 2026). It is spelled F-I-R-E-B-O-X. The plural of fire box is fire boxes.

What does fire box mean?

noun

  1. 1

    The hearth of a metal-forging shop; the forge of a smithy.

  2. 2

    An enclosed hearth with hatch for refueling that is attached to or built into a boiler that supplies steam for mechanical power.

    The brakeman had to help the fireman shovel coal into the firebox as the engineer coaxed his locomotive up grade.

  3. 3

    The internal hearth of a furnace, stove, or heater.

  4. 4

    The hearth of an outdoor grill.

    When the bottom of the grill firebox burned through, everybody ran over and stomped embers too keep the picnic shelter from catching fire.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Forms of fire box

  • fire boxes plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Words people confuse with fire box

Also written: firebox (one word or two).

Sources: English Wiktionary (homophones, alternative spellings).