'Downpour' definitions:

Definition of 'downpour'

From: WordNet
noun
A heavy rain [syn: downpour, cloudburst, deluge, waterspout, torrent, pelter, soaker]

Definition of 'Downpour'

From: GCIDE
  • Downpour \Down"pour`\, n. A pouring or streaming downwards; esp., a heavy or continuous shower. [1913 Webster]

Synonyms of 'downpour'

From: Moby Thesaurus