Definitions of rain:

  • noun:   anything happening rapidly or in quick successive
    Example: "A rain of bullets"
  • noun:   water falling in drops from vapor condensed in the atmosphere
  • noun:   drops of fresh water that fall as precipitation from clouds
  • verb:   precipitate as rain
    Example: "If it rains much more, we can expect some flooding"
  • name:  A surname (very rare: popularity rank in the U.S.: #20012)