1. in the sense of evidence
- verification
- evidence
- authentication
- corroboration
- certification
- confirmation
- attestation
- validation
- substantiation
- demonstration
- testament
- witness
- facts
- documentation
- testimony
- data
- ammunition
2. in the sense of page proof
- galley proof
- page proof
- pull
- galley
- trial print
- slip
- revise
3. in the sense of resistant
- impenetrable
- resistant
- repellent
- impervious
- treated
- proofed
- windproof
- waterproof
- leakproof
- rainproof
- weatherproof
- damp-proof
- bombproof
- bulletproof
- soundproof
- fireproof
- tamper-proof
- childproof
- imperviable
Example Sentences of Proof
1. Please provide proof of your identity.
2. The proof is in the details.
3. She submitted proof of her qualifications.
4. He needed proof for his claims.