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Acid test
01
a way of proving the validity of a claim or determining the success rate of a plan
IdiomWhat is the origin of the idiom "acid test" and when to use it?
The idiom "acid test" has its origins in the field of metallurgy, where acids were used to determine the purity and authenticity of precious metals like gold. If a metal passed the "acid test," it remained unaltered by the acid and was considered genuine. In a broader sense, the phrase has evolved to describe a rigorous and definitive examination or assessment that is used to determine the true value, quality, or effectiveness of something.
Example
The final presentation will be the acid test of their teamwork and preparation.
Success in the competitive industry serves as the acid test of a company's resilience and adaptability.
Passing the bar exam is the acid test for anyone wanting to become a lawyer.
