[fahyuh r-proof]


resistant to destruction by fire.
totally or almost totally unburnable.

verb (used with object)

to make fireproof.

Origin of fireproof

First recorded in 1630–40; fire + -proof
Related formsnon·fire·proof, adjectivequa·si-fire·proof, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for fireproof

Contemporary Examples of fireproof

Historical Examples of fireproof

British Dictionary definitions for fireproof



capable of resisting damage by fire


(tr) to make resistant to fire
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

Word Origin and History for fireproof

1630s, from fire (n.) + proof. As a verb, from 1867. Related: Fireproofed; fireproofing.

Online Etymology Dictionary, © 2010 Douglas Harper