constitution
con.sti.tu.tion \.ka:n(t)-st*-'t(y)u:-sh*n\ n 1: an established law or custom : ORDINANCE 2: the act of establishing, making, or setting up 3a: the physical makeup of the individual comprising inherited qualities mo dified by environment : PHYSIQUE 3b: the structure, composition, physical makeup, or nature of something 4: the mode in which a state or society is organized; esp : the man ner in which sovereign power is distributed 5a: the fundamental principles of a nation, state, or body politic that det ermine the powers and duties of the government and guarantee certain rights to the people and that together constitute the organic law of the land 5b: a written instrument embodying such rules
Webster's English Dictionary