A plurality system is an electoral system in which the candidate who receives the most votes wins, regardless of whether they have obtained an absolute majority.
A majority system is an electoral system in which a candidate must receive more than 50% of the votes to win. If no candidate achieves this in the first round, a runoff election may be held between the top two candidates.
Proportional representation is an electoral system that aims to allocate seats in proportion to the number of votes received by each political party or group.