The phrase "cloaked avengers" typically refers to individuals or groups who operate in secret and often work toward a common goal. Synonyms for "cloaked avengers" might include terms like "covert operatives," "secret agents," or "mystery vigilantes." Other synonyms for this phrase might include "shadow warriors," "cloak-and-dagger defenders," or "stealth defenders." These terms all suggest similar ideas of individuals or groups who operate in secret to protect or defend others. Whatever term you choose to use, the idea of a group of individuals who work anonymously to protect others is a powerful one that has resonated with people for centuries.