First-past-the-post is an electoral system that refers to the candidate who has the most votes in an election, regardless of whether or not they have an absolute majority. This system has been used in many countries, including the United States and the United Kingdom. There are several other systems that are similar to first-past-the-post, including plurality, winner-takes-all, and relative majority. Plurality is the system where the candidate with the most votes is declared the winner, regardless of their percentage of the total vote. Winner-takes-all is a system where the candidate who receives the most votes is awarded all of the available seats. Relative majority refers to the candidate who has the most votes in a given electoral district, but not necessarily a majority of the total vote.