B2noun1K

Proof

UK /["/pruːf/"]/US /["/pruːf/"]/

Definition

information, documents, etc. that show that something is true

In simple words: A piece of evidence that shows something is true.

Examples

I need more proof to believe his story.
The proof of his guilt was overwhelming.
Can you show me the proof of your payment?
In mathematics, a proof is used to demonstrate the truth of a theorem.
Her draft was returned with proof for grammatical errors.
He presented the proof of concept during the meeting.
The wine had a high proof, indicating it was very strong.
To verify the product’s quality, a proof batch was produced.
They required proof of identity before allowing entry.

Usage notes

Use 'proof' in discussions about facts, evidence, or validation. It's appropriate in formal settings like academic writing and legal contexts, but can also be casual in everyday conversation.

Grammar pattern

provide + proof (of something)

Memory hint

Think of 'proof' as something that 'proves' a point, like a detective with evidence.

Collocations

clear
convincing
direct
be
constitute
have
without proof
proof of
the burden of proof
the onus of proof
a lack of proof

Synonyms

evidence

Antonyms

disproof
refutation

Common mistakes

Confused with 'prove' (verb) and 'proof' (noun).
Using 'proof' without specifying what it is evidence of.
Mixing up 'proof' with 'evidence', though they can be similar.