English to English

verb (v)

• unroll, unfold, or spread out or be unrolled, unfolded, or spread out from a furled state(verb.change)

  Example:
  Unfurl a banner.
  

  Synonym:
  unroll
  Antonym:
  roll up, wrap up
  

  source: wordnet30
• To loose from a furled state; to unfold; to expand; to open or spread; as, to unfurl sails; to unfurl a flag.(verb)

  source: webster1913