verb (v)

• squeeze or press together(verb.contact)

  Synonym:
  compact, compress, contract, press, squeeze
  

  source: wordnet30
• become tight or as if tight(verb.change)

  Example:
  Her throat constricted.
  

  Synonym:
  constringe, narrow
  

  source: wordnet30
• To draw together; to render narrower or smaller; to bind; to cramp; to contract or cause to shrink.(verb)

  source: webster1913