gladiator

noun
  1. A person, often a slave or captive, who was armed and trained to fight other people or wild animals in an arena for public entertainment in ancient Rome. noun
    The gladiator prepared for his battle in the Colosseum.
    Many gladiators were celebrated as heroes by the Roman populace.
  2. A person engaged in a public fight or controversy, especially in a political or social context. noun
    The politician was known as a gladiator in the arena of public debate.
    She became a gladiator for social justice, fighting tirelessly for equality.