Judge

noun

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

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

4. A person who evaluates something or forms an opinion.

   "She is a good judge of wine."