complaint vs problem

complaint

noun
  • A grievance, problem, difficulty, or concern. 

  • However, court proceedings, such as a trial, cannot be instituted until an indictment or information has been handed down against the defendant. 

  • In a civil action, the first pleading of the plaintiff setting out the facts on which the claim is based; 

  • The purpose is to give notice to the adversary of the nature and basis of the claim asserted. 

  • The act of complaining. 

  • In criminal law, the preliminary charge or accusation made by one person against another to the appropriate court or officer, usually a magistrate. 

  • A bodily disorder or disease; the symptom of such a disorder. 

problem

noun
  • A difficulty that has to be resolved or dealt with. 

  • A puzzling circumstance. 

  • A set of moves required to complete a climb. 

  • A question to be answered, schoolwork exercise. 

  • Objection. 

  • Difficulty in accepting or understanding or refusal to accept or understand. 

adj
  • Causing a problem; problematic; troublesome. 

  • Difficult to train or guide; unruly. 

How often have the words complaint and problem occurred in a corpus of books? (source: Google Ngram Viewer )