noun (n)

• bending the head or body or knee as a sign of reverence or submission or shame or greeting(noun.communication)

  Synonym:
  bow, bowing
  

  source: wordnet30
• the act of obeying; dutiful or submissive behavior with respect to another person(noun.act)

  Synonym:
  obedience
  Antonym:
  disobedience, noncompliance
  

  source: wordnet30
• Obedience.(noun)

  source: webster1913