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6 days ago · The meaning of PROOF is the cogency of evidence that compels acceptance by the mind of a truth or a fact. How to use proof in a sentence.

PROOF definition: 1. a fact or piece of information that shows that something exists or is true: 2. a logical…. Learn more.

Proof is a fact, argument, or piece of evidence which shows that something is definitely true or definitely exists. This is not necessarily proof that he is wrong.

evidence, proof - Evidence—from Latin e-, "out," and videre, "to see"— is information that helps form a conclusion; proof is factual information that verifies a conclusion.

to treat or coat for the purpose of rendering resistant to deterioration, damage, etc. (often used in combination): to proof a house against termites; to shrink-proof a shirt.

Jun 7, 2026 · proof (countable and uncountable, plural proofs) (countable) An effort, process, or operation designed to establish or discover a fact or truth; an act of testing; a test; a trial.

Proof is the evidence that shows something is true or valid. When you show the logical steps that take you from your hypothesis that the world is round to the conclusion that it is, you're formulating a proof.

A proof is a logical or mathematical demonstration confirming the validity of a proposition, statement, or theory by presenting a structured set of reasons or evidence.

Proof definition: The evidence or argument that compels the mind to accept an assertion as true.