🇬🇧 en tr 🇹🇷

touchstone noun

  /ˈtʌt͡ʃstəʊn/
  • A stone used to verify the quality of gold alloys by rubbing them in order to leave a visible trace.
  • (figurative, by extension) A standard of comparison or evaluation.
 mihenk taşı, denek taşı, mihenk
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