Proof Synonyms

43 proof synonyms include evidence, verification, corroboration, authentication, confirmation, certification, validation, and substantiation. Proof is a noun, and its antonyms are disproof and refutation. Here are some additional synonyms for "proof" with example sentences.

Another word for Proof

43 other ways to say proof.

1. evidence

  • witness
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  • verification  
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  • validation
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  • testimony  
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  • testament  
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  • substantiation  
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  • facts  
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  • evidence
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  • documentation  
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  • demonstration  
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  • data
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  • corroboration  
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  • confirmation  
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  • certification  
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  • authentication  
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  • attestation  
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  • ammunition  
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2. page proof

  • trial print  
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  • slip  
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  • revise  
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  • pull
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  • page proof  
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  • galley proof  
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  • galley  
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3. resistant

  • windproof  
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  • weatherproof  
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  • waterproof  
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  • treated  
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  • tamper-proof  
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  • soundproof  
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  • resistant  
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  • repellent  
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  • rainproof  
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  • proofed  
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  • leakproof  
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  • impervious  
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  • imperviable  
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  • impenetrable  
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  • fireproof  
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  • damp-proof  
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  • childproof  
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  • bulletproof  
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  • bombproof  
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Use proof in a Sentence

A serious accusation needs proof.

He needed proof for his claims.

I’m skeptical until I see proof.

Please provide proof of your identity.

She provided valid proof for verification.

The proof is in the details.