What does the word stream mean?

Usage examples for stream

  1. These added to what I know of her life, are enough to assure me of her safe passage over the dark stream. – Memoirs of Mrs. Rebecca Steward by T. G. Steward
  2. Out of his mouth poured a stream of blood. – Essays on Russian Novelists by William Lyon Phelps
  3. After that they passed on down stream, and Tom and I went our way. – The Story of Antony Grace by George Manville Fenn