touchstone

American  

[tuhch-stohn] / ˈtʌtʃˌstoʊn /

noun

1. a test or criterion for the qualities of a thing.

   Synonyms:

   pattern, model, measure, standard

2. a black siliceous stone formerly used to test the purity of gold and silver by the color of the streak produced on it by rubbing it with either metal.

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touchstone British  

/ ˈtʌtʃˌstəʊn /

noun

1. a criterion or standard by which judgment is made

2. a hard dark siliceous stone, such as basalt or jasper, that is used to test the quality of gold and silver from the colour of the streak they produce on it

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Etymology

Origin of touchstone

First recorded in 1475–85; touch + stone

Example Sentences

The actor, who died Wednesday of cancer, will be best known to a generation of viewers for his role on the WB teen drama that became a cultural touchstone for many.

From Los Angeles Times

The film was not a major success on its initial release but steadily grew into a midnight-movie favorite and international cult touchstone.

From Los Angeles Times

The show became a touchstone for a generation of ’90s kids and catapulted its young stars into bona fide stardom.

From The Wall Street Journal

The website he started in 2000 had grown and evolved while still serving as a touchstone for gay men seeking to connect with others.

From The Wall Street Journal

Moira was my touchstone as I struggled with the reality of an unusually transient life, having lived in 29 homes by the age of 46.

From Los Angeles Times

Related Words

• barometer
• criterion