A more thorough explanation:

A grange is a farm that has all the necessary buildings and facilities for farming, such as a barn, granary, and stables. It can also refer to an outlying farm that belonged to a religious establishment or a feudal lord in the past.

In addition, Grange (with a capital G) is the name of a social, educational, and political organization called the National Grange of the Patrons of Husbandry. This organization was formed in 1867 and represents the interests of farmers in lobbying the government and informing its members about agriculture-related legislation and proposals.

The Grange was also the foundation of the Granger Movement, a political force in the 19th century that protested economic abuses that hurt farmers. The movement's followers, called Grangers, controlled several Midwest state legislatures and passed Granger laws that set maximum rates for railroads, warehouses, and elevators. However, these laws were challenged in court by railroads and other interested parties in what became known as the Granger Cases.

For example, a farm that has a barn, granary, and stables can be called a grange. The National Grange of the Patrons of Husbandry is an example of a Grange organization that represents farmers. The Granger Movement and the Granger laws are examples of how farmers organized to protect their interests and challenge economic abuses.