Opa

noun
  1. A German term for grandfather. noun
    My opa used to tell me stories about his childhood.
    Every summer, we visit our opa in the countryside.
  2. An exclamation used in Greek culture to express joy, celebration, or enthusiasm, often heard during traditional dances or when breaking plates. interjection
    As the music played, everyone shouted 'opa!' and joined the dance.
    The waiter accidentally dropped a plate, and the crowd cheered, 'Opa!'