deluge

(noun) an overwhelming number or amount. Synonyms: flood, inundation, torrent. Examples: "A flood of requests." "A torrent of abuse."

(noun) a heavy rain. Synonyms: downpour, cloudburst, waterspout, torrent, pelter, soaker.

(noun) the rising of a body of water and its overflowing onto normally dry land. Synonyms: flood, inundation, alluvion. Example: "Plains fertilized by annual inundations."

(verb) fill quickly beyond capacity; as with a liquid. Synonyms: flood, inundate, swamp. Examples: "The basement was inundated after the storm." "The images flooded his mind."

(verb) charge someone with too many tasks. Synonyms: overwhelm, flood out.

(verb) fill or cover completely, usually with water. Synonyms: inundate, submerge.