Definitions of stream:

• noun:   dominant course (suggestive of running water) of successive events or ideas

  Example: "Two streams of development run through American history"

• noun:   a natural body of running water flowing on or under the earth
• noun:   something that resembles a flowing stream in moving continuously

  Example: "A stream of people emptied from the terminal"

• noun:   the act of flowing or streaming; continuous progression
• noun:   a steady flow (usually from natural causes)

  Example: "The raft floated downstream on the current"

• verb:   flow freely and abundantly

  Example: "Tears streamed down her face"

• verb:   to extend, wave or float outward, as if in the wind

  Example: "Their manes streamed like stiff black pennants in the wind"

• verb:   exude profusely

  Example: "She was streaming with sweat"

• verb:   rain heavily
• verb:   move in large numbers
• name:  A surname (very rare: popularity rank in the U.S.: #26003)