fire door

  1. a door through which a boiler or furnace is fired or through which the fire is inspected.

  2. a fireproof or fire-resistant door in a building, intended to isolate an area from fire.

Origin of fire door

First recorded in1830–40

Words Nearby fire door Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use fire door in a sentence

British Dictionary definitions for fire door

fire door

  1. a door made of noncombustible material, the purpose of which is to prevent a fire from spreading within a building

  2. a similar door, leading to the outside of a building, that can be easily opened from inside; emergency exit

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012