verb (v)

• become broader or wider or more extensive(verb.change)

  Example:
  The road widened.
  

  Antonym:
  contract, narrow
  

  source: wordnet30
• make (clothes) larger(verb.change)

  Synonym:
  let out
  Antonym:
  take in
  

  source: wordnet30
• make wider(verb.change)

  Example:
  Widen the road.
  

  source: wordnet30
• extend in scope or range or area(verb.change)

  Example:
  Widen the range of applications.
  

  Synonym:
  broaden, extend
  

  source: wordnet30
• To make wide or wider; to extend in breadth; to increase the width of; as, to widen a field; to widen a breach; to widen a stocking.(verb)

  source: webster1913
• To grow wide or wider; to enlarge; to spread; to extend.(verb)

  source: webster1913