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

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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 …

Parasmani (lit. 'Touchstone'), a 1963 Indian film.

Mathematical constructivism regards provability as the touchstone for mathematical propositions because proofs are created and comprehended by the mind.

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

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

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 …

touch•stone (tuch′ stōn′), n. a test or criterion for the qualities of a thing. a black siliceous stone formerly used to test the purity of gold and silver by the color of the streak produced on it by …

touchstone meaning, definition, what is touchstone: something used as a test or standard: Learn more.