diak

Etymology 1
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Noun

 * 1)  cantor in the Eastern Orthodox Church
 * 2)  scribe of a princely chancellery in Russia or an official in charge of the chancellery of a state administration office in tsarist Russia
 * 1)  scribe of a princely chancellery in Russia or an official in charge of the chancellery of a state administration office in tsarist Russia

Etymology 2
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Noun

 * 1)  DIAC, diode for alternating current