Synonyms of proof

proof

noun

ˈprüf 

as in evidence

something presented in support of the truth or accuracy of a claim

she presented proof that she had not cheated

Synonyms & Similar Words

• evidence
• testimony
• documentation
• testament
• testimonial
• confirmation
• witness
• validation
• corroboration
• substantiation
• attestation
• document
• voucher
• certificate
• demonstration
• (the) goods
• verification
• identification
• exhibit
• manifestation
• illustration
• authentication

Antonyms & Near Antonyms

• refutation
• rebuttal
• disproof
• charge
• allegation
• accusation
• assumption
• presumption
• suspicion
• conjecture
• guess
• surmise

Example Sentences

Recent Examples of proof

If the answer cites a source, follow that link instead of simply treating the answer itself as proof. — Leo S. Lo, The Conversation, 18 Sep. 2026

The Perfect Recipe The proof of the conjecture would require a way to closely connect the bread and cheese of any sandwich. — Paulina Rowińska, Quanta Magazine, 18 Sep. 2026

The residency is proof of the rapidly advancing infrastructure and ecosystem for artists who are looking to invest time and finances into touring the region. — Emanuel Okusanya, Variety, 18 Sep. 2026

Event organizers often require proof of insurance, vendor fees or health permits for food sellers before approving applications. — Gabby Sartori, USA Today, 17 Sep. 2026