<p><strong>Adjective</strong></p><ul><li>Of or relating to Greece, the Greeks, or their language.</li><li>Pertaining to the Greek Orthodox Church.</li><li>Noting or pertaining to the alphabetic script derived from a Semitic form of writing, employing some letters that originally represented consonants for use as vowel sounds, which was used from about the beginning of the first millennium B.C. for the writing of Greek, and from which the Latin, Cyrillic, and other alphabets were derived.</li></ul><p><strong>Noun</strong></p><ul><li>A native or inhabitant of Greece.</li><li>The language of the ancient Greeks and any of the languages that have developed from it, as Hellenistic Greek, Biblical Greek, the Koine, and Modern Greek.</li><li>Informal: Anything unintelligible, as speech, writing, etc.: This contract is all Greek to me.</li><li>A member of the Greek Orthodox Church.</li><li>A person who belongs to a Greek-letter fraternity or sorority.</li><li>Archaic: Usually Offensive. A cheater, especially one who cheats at cards.</li></ul>