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

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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.

Use the noun touchstone to describe a basis for comparison. For example, a filmmaker's touchstone might be her all-time favorite movie; she wants her movie to be that good or similar to it in some way.

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 …

Use the noun touchstone to describe a basis for comparison. For example, a filmmaker's touchstone might be her all-time favorite movie; she wants her movie to be that good or similar to it in some way.

Touchstone Pictures was an American film production label of Walt Disney Studios, founded and owned by The Walt Disney Company.

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