the freedom that a person has to control their own life and make their own choices about their state and actions;
e.g. Many young people enjoy the self-determination that comes with leaving their parents' homes for the first time.
(noun)
the process by which a territory determines its political status, for example its decision to become a country, and forms its own government and alliances;
e.g. She voted in favor of the region's self-determination so it could become an independent nation.