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Meaning of sure thing

sure' thing'

Pronunciation: [key]
  1. something that is or is supposed to be a certain success, as a bet or a business venture: He thinks that real estate is a sure thing.
  2. something assured; certainty: It's a sure thing that he'll refuse to cooperate.
  3. surely; for sure; O.K.; roger (often used as an interjection).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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