Definition of: Greek

(grēk) adjective
Pertaining to Greece, its inhabitants, their language, or culture; Grecian; resembling the people of Greece.
—noun
1. One of the people of ancient Greece; specifically, a member of one of the four major tribes: Achaean, Aeolian, Dorian, and Ionian.
2. One of the people of modern Greece, descended, with admixture, from the ancient Greeks.
3. The Indo–European, Hellenic language of ancient or modern Greece. Ancient, or classical, Greek, from Homer to about A.D. 200, is divided into four literary dialects: Aeolic, Attic, Doric, and Ionic. Abbr. Gk.
—Late Greek, the language from about A.D. 200 to 600, including the patristic writings. See KOINE. Abbr. LGk.
—Medieval Greek, the language of the Byzantine period, from 600 to 1500. Abbr. Med. Gk.
—Modern Greek, the language of Greece since 1500, in its literary form retaining many classical features: also called Romaic, especially in its spoken form.
4. Language or things not understood: It's all Greek to me.
5. A member of the Greek Church.
6. Colloq. A tricky fellow; sharper; rogue.
7. Archaic A gay fellow; roisterer: a merry Greek.
8. U.S. Slang A member of a student fraternity designated by a combination of Greek letters. [<L Graecus <Gk. Graikos Greek]
—Greek′lsh adjective