complaint

noun

1. (countable, uncountable)The act of complaining.

   “customer complaints”

   “noise complaints”

   “file complaints”

   “The company received numerous complaints about the product.”

   “He filed complaints with the housing authority.”

2. (countable, uncountable)A grievance, problem, difficulty, or concern.

   “I have no complaints about the quality of his work, but I don't enjoy his company.”

3. (countable, uncountable)In a civil action, the first pleading of the plaintiff setting out the facts on which the claim is based.
4. (countable, uncountable)In criminal law, the preliminary charge or accusation made by one person against another to the appropriate court or officer, usually a magistrate.
5. (countable, uncountable)A bodily disorder or disease; the symptom of such a disorder.

   “Don't come too close; I've got this nasty complaint.”