This document defines key concepts related to citizenship, nationality, and related legal statuses. It discusses how citizenship can be acquired through birth in a country (jus soli) or descent from citizen parents (jus sanguinis). Citizenship can also be voluntarily acquired through naturalization or lost through voluntary renunciation. The document focuses specifically on Philippine citizenship law, outlining how citizenship is acquired and lost according to the Philippine Constitution. It also defines the rights and duties of Philippine citizens.