touchstone

• Nom désignant un critère ou une norme servant de référence pour juger ou comparer, ainsi qu'une pierre utilisée pour tester la pureté des métaux précieux.

A noun referring to a standard or criterion used as a basis for comparison or evaluation against which other things are measured.

1. Standard for comparisonC1formal

   A fundamental or standard criterion used to judge or evaluate the quality or value of other things.

   Pierre de touche

   • This classic novel is often used as a touchstone for modern literature.
   • The company's customer service became a touchstone for the entire industry.
   • His performance in the final match was a touchstone of athletic excellence.

   Synonymesacid testbarometerbenchmarkcriteriongaugelitmus testmeasurenormstandardyardstick