Idioms With “Acid” and Meanings

List of idioms with the word “Acid” and the meanings. Idioms about “Acid” and expressions.

acid test
the most crucial or important test of worth
1. Parents might be willing to buy this new toy for their children but the real acid test is whether or not the children themselves like it.
2. The acid test for laundry soap is not how well it cleans in hot water, but how well it cleans in cold water.
The expression originates from the use of nitric acid on gold to determine whether the gold was genuine.

an acid test
a test which will really prove the value, quality, or truth of something The new show was well received but viewing figures for the next episode will be the real acid test. The acid test for the product will be whether people actually buy it.

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