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information or evidence that proves the truth or existence of something
a series of reasons each implied by the previous one that collectively show a statement is true
the act or process of testing the truth of something through evidence or argument
a trial photographic print from a negative
(printing) an impression made to check for errors
a scale for measuring the strength of alcoholic beverages
What is "proof"?
Proof refers to a unit of measurement indicating the alcoholic strength of a beverage, particularly distilled spirits like whiskey, vodka, rum, and gin. In the United States, proof is defined as twice the percentage of alcohol by volume (ABV). For example, a beverage with 40% ABV would be considered 80 proof. Historically, the term "proof" originated in the United Kingdom, where it showed the alcohol content of spirits in relation to the amount of gunpowder that could still catch fire when soaked in the spirit. Today, it serves as a standard measure of alcohol strength, with 100 proof being typical for many spirits.
(used as a compound adjective or a suffix) capable of enduring a specific type of damage, condition, or test
