Fireproof
Fireproof verb - Make resistant to fire.
Proof
Proof verb - Read for errors.
Fireproof and proof are semantically related in waterproof topic. Sometimes you can use "Fireproof" instead an adjective "Proof".
Both words in one sentence
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The new one was shown to be fireproof, chainsaw-proof, and can expand better than the old one.
Source: Anime / Tiger & Bunny - Along with Chameleon Camouflage, they're supposedly also bulletproof, shockproof, fireproof and wizard-proof.
Cite this Source
Proof and Fireproof. (2016). Retrieved 2026, August 12, from https://thesaurus.plus/related/fireproof/proof
Fireproof & Proof. N.p., 2016. Web. 12 Aug. 2026. <https://thesaurus.plus/related/fireproof/proof>.
Proof or Fireproof. 2016. Accessed August 12, 2026. https://thesaurus.plus/related/fireproof/proof.
Google Ngram Viewer shows how "fireproof" and "proof" have occurred on timeline