adverb (r)

• as supposed or expected(adv.all)

  Example:
  Sure enough, he asked her for money again.
  

  source: wordnet30
• definitely or positively (`sure' is sometimes used informally for `surely')(adv.all)

  Example:
  They thought he had been killed sure enough.
  

  Synonym:
  certainly, for certain, for sure, sure, sure as shooting, surely
  

  source: wordnet30