What is the meaning of outpouring?

noun

• A natural flow of ground water.
  • synonyms: spring, fountain, outflow, natural spring
• A sudden rapid flow (as of water. )
  • usage: "he heard the flush of a toilet"; "there was a little gush of blood"; "she attacked him with an outpouring of words"
  • synonyms: flush, gush
• The pouring forth of a fluid.
  • synonyms: discharge, run
• The rapid and continuous delivery of linguistic communication (spoken or written. )
  • usage: "a barrage of questions"; "a bombardment of mail complaining about his mistake"
  • synonyms: barrage, bombardment, onslaught
• A large flow.
  • synonyms: flood, overflow