What is the meaning of deluge?

noun

• An overwhelming number or amount.
  • usage: "a flood of requests"; "a torrent of abuse"
  • synonyms: flood, inundation, torrent
• A heavy rain.
  • synonyms: downpour, cloudburst, waterspout, torrent, pelter, soaker
• The rising of a body of water and its overflowing onto normally dry land.
  • usage: "plains fertilized by annual inundations"
  • synonyms: flood, inundation, alluvion

verb

• Fill quickly beyond capacity; as with a liquid.
  • usage: "the basement was inundated after the storm"; "The images flooded his mind"
  • synonyms: flood, inundate, swamp
• Charge someone with too many tasks.
  • synonyms: overwhelm, flood out
• Fill or cover completely, usually with water.
  • synonyms: inundate, submerge