Greek may refer to anything related to Greece, including: Greek culture Greek history Greek alphabet Greek language, or, more specifically, Ancient Greek Koine Greek Medieval Greek Modern Greek Greeks, a nation and a people Other Greek may also refer to, but not limited to: Greek to me, an idiom/dead metaphor in English, claiming that an expression is incomprehensible Greeks (finance), a concept in mathematical finance crucial to the pricing of certain derivatives Fraternities and sor… (More on Greek)