touchstone suggests a simple test of the authenticity or value of something intangible.

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Define touchstone. touchstone synonyms, touchstone pronunciation, touchstone translation, English dictionary definition of touchstone. n. 1. A hard black stone, such as jasper or basalt, formerly used …

In a literal sense, a touchstone is a dark-colored stone, typically made of basalt or jasper, used to test the purity of gold or silver. By rubbing the metal against the touchstone and comparing the resulting …

TOUCHSTONE meaning: 1. an established standard or principle by which something is judged: 2. an established standard…. Learn more.

TOUCHSTONE definition: a test or criterion for the qualities of a thing. See examples of touchstone used in a sentence.

touchstone (of/for something) something that provides a standard against which other things are compared and/or judged. Grammar was regarded as the touchstone of all language performance. He …

If you use one thing as a touchstone of another, you use it as a test or standard by which you judge the second thing. Job security has become the touchstone of a good job for many employees.

Jan 20, 2026 · From touch +‎ stone. A stone used to verify the quality of gold alloys by rubbing them in order to leave a visible trace. The foregoing doctrine affords us also a touchstone for the trial of …