verb

• (transitive) To cause (liquid, or liquid-like substance) to flow in a stream, either out of a container or into it.
  "pour water from a jug"
• (transitive, figurative) To send out as in a stream or a flood; to cause (an emotion) to come out; to cause to escape.
  "My teacher poured scorn on my attempts at writing."
• (transitive) To send forth from, as in a stream; to discharge uninterruptedly.
  "Is it for thee the linnet pours his throat?"
• (intransitive) To flow, pass, or issue in a stream; to fall continuously and abundantly.
  "the rain poured down."

noun

• (colloquial) A downpour; a flood of precipitation.
  "Then, as if to give the lie to the offensive insinuation, he mounted his horse, and rode home ten miles in a pour of rain, without a great coat or umbrella."