The "Unwritten Constitution" refers to the set of practices, traditions, and legal precedents that shape a country's governance but are not codified in a single document. In countries like the United Kingdom, this concept plays a crucial role, as their constitution is based on statutes, conventions, and judicial decisions rather than a single written text. This unwritten framework includes important elements such as parliamentary sovereignty, the role of the Prime Minister, and the function of political parties. These components guide the operation of government and influence political behavior, ensuring stability and continuity in the absence of a formal constitution.