## proof Definition

- 1evidence or argument establishing a fact or the truth of a statement
- 2the strength of distilled alcoholic spirits, relative to the percentage of alcohol present

## Using proof: Examples

Take a moment to familiarize yourself with how "proof" can be used in various situations through the following examples!

Example

The fingerprints on the weapon were proof of his guilt.

Example

She demanded proof of his love for her.

Example

The mathematical proof was complex but convincing.

Example

The whiskey was 80 proof.

## proof Synonyms and Antonyms

### Synonyms for proof

### Antonyms for proof

## Idioms Using proof

the real value or quality of something can only be judged when it's put to use or tested

Example

We won't know if the new software is any good until we try it out. The proof of the pudding is in the eating.

Example

The DNA test was proof positive that he was the father.

Example

The new marketing strategy was a success, and the proof is in the pudding with increased sales.

## Phrases with proof

Example

The burden of proof is on the prosecution to prove the defendant's guilt.

Example

The DNA test was proof positive that he was the father.

Example

The prototype was a proof of concept for the new product line.

## Origins of proof

from Old French 'preve', from Latin 'probare', meaning 'to test or prove'

## Summary: proof in Brief

The term 'proof' [pruːf] refers to evidence or argument establishing a fact or the truth of a statement, as in 'The fingerprints on the weapon were proof of his guilt.' It also denotes the strength of distilled alcoholic spirits, as in 'The whiskey was 80 proof.' 'Proof' extends into phrases like 'burden of proof,' and idioms like 'the proof of the pudding is in the eating,' denoting the practical demonstration of the truth or effectiveness of something.