What does the word union mean?

Usage examples for union

  1. It had to be, that she felt; it was at once their union and their parting. – The Complete Historical Romances of Georg Ebers by Georg Ebers
  2. It was his first article of faith that New York must be the greatest state in the Union. – The Critical Period of American History by John Fiske
  3. In any real sense of the word it is a Union no more. – An American at Oxford by John Corbin