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Encyclopedic overview
Cortana may refer to: Cortana (gastropod), a gastropod genus Cortana (Halo), character in the Halo franchise Cortana (virtual assistant), virtual assistant from Microsoft Cortana, or Curtana, a ceremonial sword used in the coronation of British monarchs Cortain, or Curtana, the sword wielded by Ogier the Dane, Paladin of Charlemagne
Excerpted from Wikipedia’s “Cortana” article, available under the CC BY-SA 4.0 licence.