touchstone
Meaning
- A stone used to verify the quality of gold alloys by rubbing them in order to leave a visible trace.
- (broadly, figuratively) A standard of comparison or evaluation.
Synonyms
bench-mark
lapis Lydius
test stone
Translations
Frequency
Pronounced as (IPA)
/ˈtʌt͡ʃstəʊn/
Etymology
From touch + stone.
Notes
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