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
It is thought they got into a studio through a fire door.
From BBC ● Apr. 22, 2025
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
It had a big door in the center of its nose and a low fire door.
From "Cannery Row" by John Steinbeck
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.
