duke duke /ˈduːk/

noun

1. () A British peer of the highest rank  ( duke )
   a British peer of the highest rank
   
2. A nobleman (in various countries) of high rank  ( duke )
   a nobleman (in various countries) of high rank
    The duke attended the royal event, arriving in a grand carriage.
   The duke attended the royal event, arriving in a grand carriage.