verb (v)

• close in(verb.stative)

  Synonym:
  confine, enclose
  

  source: wordnet30
• lessen the intensity of; temper; hold in restraint; hold or keep within limits(verb.social)

  Synonym:
  check, contain, control, curb, hold, moderate
  

  source: wordnet30
• hold back; keep from being perceived by others(verb.perception)

  Synonym:
  conceal, hold back
  

  source: wordnet30