What does the word coin mean?

Usage examples for coin

  1. The pure gold of the German temper could never be made into hard coin nor used to advantage. – German Problems and Personalities by Charles Sarolea
  2. They took out a gold coin and twenty roubles in notes. – The Lady with the Dog and Other Stories by Anton Chekhov
  3. But the silver coin will soon be ready. – The Moghul by Thomas Hoover