noun · B2

Proof

PROOF/pruːf/

Proof is evidence that something is true, or a trial print: proof of posting; a proof copy. Evidence is wider; prove is the verb (already in the dictionary). A cropped screenshot is not proof. Mix-up: proof as “resistant” in waterproof. Do not treat a rumour as proof.

Meaning

Evidence that shows something is true; also a trial print.

Examples

“A screenshot is not proof of posting if the timestamp is cropped.”
“The poet marked the proof copy, which is the printing sense.”

Good to know

proof of + noun; proof that. Verb: prove. Wider: evidence. Printing: a proof. Malpractice and science. Evidence, not a guess.

Near in meaning

evidence

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