judge

noun

• A public official whose duty it is to administer the law, especially by presiding over trials and rendering judgments; a justice.
• A person who decides the fate of someone or something that has been called into question.
• A person officiating at a sports event or similar.

  "At a boxing match, the decision of the judges is final."

• A person who evaluates something or forms an opinion.

  "She is a good judge of wine."