What does the word fin mean?

Usage examples for fin

  1. This is the fishery mostly frequented by European nations; it is this fish which yields the fin in quantity, and the voyages last about three or four months. – Memoir, Correspondence, And Miscellanies, From The Papers Of Thomas Jefferson by Thomas Jefferson
  2. He pointed to a huge shark, its triangular fin just above the surface, keeping two or three fathoms off, even with the boat, at which the monster every now and then, as he declared, gave a wicked leer. – The Three Lieutenants by W.H.G. Kingston
  3. If you are so careless, you will soon not have a whole fin to your back- or your front either. – Among the Pond People by Clara Dillingham Pierson