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English definition of “hallmark”


noun [C] (MARK)    /ˈhɔːl.mɑːk/ US  /ˈhɑːl.mɑːrk/
in the UK, an official mark put on objects made of gold or silver that shows their place and year of origin and how pure the metal is that is used to make themMetals and metalworkingChemical elementsSpecific signs and symbolsSigns, signals and symbols
(Definition of hallmark noun (MARK) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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