A more thorough explanation:

An off-year election is an election that takes place in a year that is not a presidential election year. It is usually held to elect members of Congress, state legislators, and local officials.

For example, in the United States, presidential elections are held every four years, while off-year elections are held in the years in between. In these elections, voters choose their representatives in the House of Representatives and the Senate, as well as governors, mayors, and other local officials.

Off-year elections are important because they can have a significant impact on the balance of power in government. For example, if one political party wins a lot of seats in an off-year election, they may be able to pass more laws and policies that align with their party's values and goals.

Overall, off-year elections are an important part of the democratic process, as they give citizens the opportunity to choose their representatives and have a say in how their government is run.