Majoritarianism is a political philosophy or ideology that asserts that a majority based on a religion, language, social class, or other category of the population is entitled to a certain degree of primacy in society. It is the idea that the numerical majority of a population should have the final say in determining the outcome of a decision. Here are some key points about majoritarianism:

• Majoritarianism is often referred to as majority rule, which may refer to a majority class ruling over a minority class, while not referring to the decision process called majority rule.

• Under a democratic majoritarian political structure, the majority would not exclude any minority from future participation in the democratic process.

• Majoritarianism is sometimes pejoratively referred to by its opponents as "ochlocracy" or "tyranny of the majority".

• Majoritarianism can be seen as authoritarian by definition when it emerges as a form of governance that uses nationalist and populist markers of inclusion and exclusion.

• Majoritarianism can take on an ethnic dimension, which can render it particularly pernicious, as it provides the justification for ethnic-majority groups to rule over minority groups without the need to ensure equal rights and protections.

• Democracies have increasingly included constraints on what the parliamentary majority can do, in order to protect citizens’ fundamental rights.

• Majoritarianism is sometimes confused with the concept of a majoritarian electoral system, which is a simple electoral system that usually gives a majority of seats to the party with a plurality of votes.

• Majoritarianism, as a concept of government, branches out into several forms, including unicameralism and a unitary state, qualified majoritarianism, and integrative majoritarianism.

• Majoritarianism has had both a pejorative and positive connotation throughout history.

Examples of majoritarianism include the idea that the majority of a population should be able to make decisions for that population. The worldwide growth of populism around the world has triggered the rise of majoritarianism in some countries.