Meaning of upend

up•end

Pronunciation: (up-end'), [key]
— v.t.
  1. to set on end, as a barrel or ship.
  2. to affect drastically or radically, as tastes, opinions, reputations, or systems.
  3. to defeat in competition, as in boxing or business.
—v.i.
  1. to become upended.
  2. to place the body back-end up, as a dabbling duck.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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