complaint in WordNet English dictionary

1. an often persistent bodily disorder or disease; a cause for complaining
   ailment  complaint  ill 
   
2. (criminal law) a pleading describing some wrong or offense
   "he was arrested on a charge of larceny"
   charge  complaint 
   
3. an expression of grievance or resentment
   complaint 
   
4. (formerly) a loud cry (or repeated cries) of pain or rage or sorrow
   complaint 
   
5. (civil law) the first pleading of the plaintiff setting out the facts on which the claim for relief is based
   complaint