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Meaning of bulletproof

bul•let•proof

Pronunciation: (bool'it-prf"), [key]
— adj.
  1. (of vehicles, glass, clothing, etc.) capable of resisting or absorbing the impact of a bullet.
  2. safe from failure; without errors or shortcomings and beyond criticism: a bulletproof system; a bulletproof budget.
—v.t.
  1. to make (something) bulletproof.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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