Word.ws English Dictionary

firedoor

firedoor is the alternative spelling of fire door.

Meaning of fire door

Noun

fire door (plural fire doors)

  1. A fireproof door designed to stop fires spreading through buildings.
    • There are 10,000 fire doors on the Elizabeth Line, including these two at Liverpool Street that have been tested to tolerate a two-hour blaze at temperatures as high as 3,000°C.2022 March 23, Paul Bigland, “We're counting down the days”, in RAIL, number 953, page 39, photo caption
  2. The door of a furnace offering access to the fire inside.

Forms of firedoor

pluralfiredoors

Origin of firedoor

From fire + door.

Questions about firedoor

What is firedoor the alternative spelling of?
Firedoor is the alternative spelling of fire door.

Words near firedoor in the dictionary

  1. firedamps
  2. firedevil
  3. firedevils
  4. firedog
  5. firedogs
  6. firedoor
  7. firedoors
  8. firedragon
  9. firedragons
  10. firedrake
  11. firedrakes

Source and license

Adapted from Wiktionary: firedoor (page history and authors); fire door (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “firedoor.” Word.ws, https://word.ws/firedoor. Based on Wiktionary, CC BY-SA 4.0.