Party governments are a type of government in which the ruling party has a majority in the legislative body, and the prime minister or the leader of the ruling party becomes the head of the government. There are various synonyms for the term party governments, such as one-party government, single-party system, dominant-party system, and partisan government. One-party governments are those parties that hold complete control over the government without any opposition. In a dominant-party system, one party's dominance is usually challenged by other smaller parties. Partisan government refers to a government in which the political parties play a vital role in the decision-making process. All these terms are frequently used interchangeably in political discourse and have a significant impact on the functioning of democracy in a nation.