verb (v)

• express complaints, discontent, displeasure, or unhappiness(verb.communication)

  Example:
  My mother complains all day.
  

  Synonym:
  kick, kvetch, plain, quetch, sound off
  Antonym:
  cheer, cheer up, chirk up
  

  source: wordnet30
• make a formal accusation; bring a formal charge(verb.communication)

  Example:
  The plaintiff's lawyer complained that he defendant had physically abused his client.
  

  source: wordnet30
• To give utterance to expression of grief, pain, censure, regret. etc.; to lament; to murmur; to find fault; -- commonly used with of. Also, to creak or squeak, as a timber or wheel.(verb)

  source: webster1913
• To lament; to bewail.(verb)

  source: webster1913