adj
fireproof
adj
1
Able to resist damage from fire.
"The documents were stored in a fireproof safe."
"They installed fireproof doors throughout the building."
verb
1
To treat something so that it resists fire damage.
"The contractor fireproofed the steel beams before the inspection."
How to Use Fireproof
Learner’s notesIn plain EnglishBuilt or treated so fire cannot easily damage it.
Common pairings
fireproof safe
fireproof material
fireproof a building
Word Forms
more fireproof comparative, fireproofed past tense, fireproofs singular, most fireproof superlative
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Etymology
From fire and -proof, on the model of words like waterproof.