torrent

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A turbulent, swift-flowing stream.
• noun A heavy downpour; a deluge.
• noun A heavy, uncontrolled flow.

from The Century Dictionary.

• Rushing in a stream.
• noun A rushing stream, as of water or lava; a stream flowing rapidly and with violence, as down the side of a hill or over a precipice.
• noun Figuratively, a violent or overwhelming flow; a flood: as, a torrent of abusive words.

from the GNU version of the Collaborative International Dictionary of English.

• noun A violent stream, as of water, lava, or the like; a stream suddenly raised and running rapidly, as down a precipice.
• noun Fig.: A violent or rapid flow; a strong current; a flood.
• adjective Rolling or rushing in a rapid stream.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A large amount of something, especially water or rain; a heavy stream or flow.
• adjective Rolling or rushing in a rapid stream.
• noun Internet A set of files obtainable through a peer-to-peer network, especially BitTorrent.
• verb Internet slang, transitive To download in a torrent.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun an overwhelming number or amount
• noun a heavy rain
• noun a violently fast stream of water (or other liquid)