A constituency is a part of the country that is represented by a Member of Parliament (MP). There are 650 constituencies across the UK.
The people who live in a constituency are called constituents. In a general election, constituents vote for who they want their MP to be.
Each political party can put forward a candidate to stand for election as an MP in a constituency. Candidates don’t have to represent a party to stand for election. Those who don’t are called independents.
After a general election, the political party that has won the vote in the most constituencies, and therefore has the most seats, usually forms a government.