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/pruːf/
Meaning & Definition
noun
Evidence or argument establishing a fact or the truth of a statement.
The scientist presented proof of her theory through extensive research.
A trial or test to determine the quality, strength, or reliability of something.
The new smartphone went through rigorous proof before its release.
A piece of evidence that helps to establish a fact or a truth.
He provided proof of his identity with a government-issued ID.
A copy of a document or print before final printing.
She reviewed the proof of her article to check for any errors.
verb
To make proof against; to make resistant to.
We need to proof the house against water damage before the rainy season.
Etymology
Middle English, from Old French 'prove', from Latin 'probatum'.
Common Phrases and Expressions
in proof:
In the process of being proofed or tested.
proof of concept:
Evidence that a concept or theory is feasible.
to be proof against:
To be resistant or immune to something.
beyond proof:
So clearly the case that no further evidence is needed.
Related Words
Slang Meanings
An assertion of credibility or resilience.
This phone is proof; you can drop it and it won't break.
Something that establishes the reality of a situation.
That certificate is total proof of her expertise.