(touch-stone) 2 syllables

Definition

noun. 1 a test or criterion for the qualities of a thing; 2 a black siliceous stone formerly used to test the purity of gold and silver by the color of the streak

Example Sentence

Performance on the SAT is a touchstone for eligibility to college.

Synonyms

standard; criterion; measure; model; pattern.

Antonyms

meaningless

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touchstone
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Rhymes

  • touchstone