Convention

con;ven;tion pronunciation: function: noun etymology: middle english, from middle french or latin; middle french, from latin convention-, conventio, from conveniredate: 15th century 1 a : agreement, contract b : an agreement between states for regulation of matters affecting all of them c : a compact between opposing commanders especially concerning prisoner exchange or armistice d : a general agreement about basic principles or procedures; also : a principle or procedure accepted as true or correct by convention2 a : the summoning or convening of an assembly b : an assembly of persons met for a common purpose; especially : a meeting of the delegates of a political party for the purpose of formulating a platform and selecting candidates for office c : the usually state or national organization of a religious denomination3 a : usage or custom especially in social matters b : a rule of conduct or behavior c : a practice in bidding or playing that conveys information between partners in a card game (as bridge) d : an established technique, practice, or device (as in the theater)