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Meaning of nonplus

non•plus

Pronunciation: (non-plus', non'plus), [key]
— v., n. -plussedor-plused, -plus•singor-plus•ing,
—v.t.
  1. to render utterly perplexed; puzzle completely.
—n.
  1. a state of utter perplexity.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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