The UK's decision to leave the EU, also known as BREXIT, refers to the referendum held in June 2016 where a majority of British voters chose for the United Kingdom to withdraw from the European Union.
Related terms
European Union (EU): A political and economic union of 27 member countries located in Europe.
Referendum: A vote in which people express their opinion on a particular issue.
Sovereignty: The supreme power or authority of a state to govern itself independently without interference from other countries or organizations.