What does the word don mean?

Usage examples for don

  1. I do not know whether I could have held out much longer, but just then the cousin turned round and told us that Don Diego was coming in. – The Memoires of Casanova, Complete The Rare Unabridged London Edition Of 1894, plus An Unpublished Chapter of History, By Arthur Symons by Jacques Casanova de Seingalt
  2. Only we don't need one. – Marjorie Dean College Freshman by Pauline Lester
  3. Therefore, it was out of the question for Don John to leave the provinces. – Project Gutenberg History of The Netherlands, 1555-1623, Complete by John Lothrop Motley