fire door
Americannoun
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a door through which a boiler or furnace is fired or through which the fire is inspected.
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a fireproof or fire-resistant door in a building, intended to isolate an area from fire.
noun
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a door made of noncombustible material, the purpose of which is to prevent a fire from spreading within a building
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a similar door, leading to the outside of a building, that can be easily opened from inside; emergency exit
Etymology
Origin of fire door
First recorded in 1830–40
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Before fleeing the fire, Kovac loaded all his valuables into a room wrapped in concrete and equipped with a fire door capable of keeping out smoke and flames for three hours.
From Los Angeles Times ● Aug. 10, 2025
She found him at the foot of the staircase, which was described as steep and "pitch black" at night due to a fire door at the bottom.
From BBC ● Jul. 21, 2022
The two-story property used to house Altype Fire Door, a fire door factory.
From New York Times ● Apr. 14, 2020
I opened a fire door, which locked closed behind me and I took in my surroundings.
From The Guardian ● Feb. 14, 2019
Nobody's touched the fire door on his bus since that day.
From "Black Swan Green" by David Mitchell
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
