Meanings
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1
noun
A distinguishing characteristic.
You know what a university is, and a university degree? It is the necessary hallmark of a man who wants to do anything in teaching.
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2
noun
An official marking made by a trusted party, usually an assay office, on items made of precious metals.
It can highlight our embodiment, a qualitative step away from the hallmark machines that work so resolutely to disembody us.
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3
verb
To provide or stamp with a hallmark.
The cane was undoubtedly of foreign make, for it had a solid silver ferrule at one end, which was not English hall–marked.
Etymology
1721. From hall + mark, from Goldsmiths' Hall in London, the site of the assay office, official stamp of purity in gold and silver articles. The general sense of “mark of quality” first recorded 1864. Use as a verb from 1773.