A vote is an individual’s act of voting, by which he or she expresses support or preference for a certain motion, a certain candidate, a selection of candidates, or a political party. With a secret ballot to protect voters’ political privacy, voting generally takes place at a polling station. The act of voting is voluntary in some countries; whereas some countries, such as Argentina, Australia, Belgium and Brazil, have compulsory voting systems.

In a voting system that uses a single vote, the voter selects his or her most preferred candidate. “Plurality voting systems” use single votes.

A development on the single vote system is to have two-round elections, or repeat first-past-the-post. However, the winner must win by 50% plus one, called a simple majority. If subsequent votes must be used, often a candidate, the one with the fewest votes or anyone who wants to move their support to another candidate, is removed from the ballot.