fireproof.
Resistant to damage from fire.
Meaning & usage
Resistant to damage from fire.
The fireproof safe will protect documents inside for up to four hours in a standard house fire.
Where this word comes from
Etymology tree Proto-Indo-European *péh₂wr̥ Proto-Germanic *fōr Proto-West Germanic *fuir Old English fȳr Middle English fyr English fire English proof English -proof English fireproof From fire + -proof.
To make resistant to damage from fire.
I hastily fireproofed my clothing somewhat by pouring a bucket of water over myself before dashing into the flames.
Where this word comes from
Etymology tree Proto-Indo-European *péh₂wr̥ Proto-Germanic *fōr Proto-West Germanic *fuir Old English fȳr Middle English fyr English fire English proof English -proof English fireproof From fire + -proof.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.