noun (n)

• concluding state of pregnancy; from the onset of contractions to the birth of a child(noun.state)

  Synonym:
  childbed, labor, labour, lying-in, parturiency, travail
  

  source: wordnet30
• the act of restraining of a person's liberty by confining them(noun.act)

  source: wordnet30
• the state of being confined(noun.state)

  Example:
  He was held in confinement.
  

  source: wordnet30
• the act of keeping something within specified bounds (by force if necessary)(noun.act)

  Synonym:
  restriction
  

  source: wordnet30
• Restraint within limits; imprisonment; any restraint of liberty; seclusion.(noun)

  source: webster1913