Ioudaios (Greek: Ἰουδαῖος; pl. Ἰουδαῖοι Ioudaioi) is a Greek ethnonym used in classical and biblical literature which commonly translates to "Jew" or "Judean". In its various meanings, the word has also been translated as "Judahites", "people of the region of Judah/Judea" (Greek: Ἰουδαία) and "leaders of Judea". A related translation debate refers to the terms ἰουδαΐζειν (verb), literally translated as Judaizing, and Ἰουδαϊσμός (noun), controversially translated as Judaism or Judeanism.