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the acid test

Idiom Science

Meaning

a true and final test of success

Example Sentences

"The real market will be the acid test for this invention."

Related Expressions

change your tune

to change your opinion or attitude

square away

to organize or finish something neatly

make oneself clear

to express oneself in a way that is easy to understand

wear out

to use something until it becomes unusable

carry on luggage

small bags taken with you on a plane or trip

Go all out

To use all your energy and resources to achieve something.