The term "Brother Jonathan" is a historical pseudonym used to refer to the United States of America. It originated in the late 18th century and was mainly used to describe the American character and persona. Since then, this term has had several synonyms used by people to refer to the great nation. Some of the popular synonyms for Brother Jonathan include Uncle Sam, USA, America, the Land of the Free, the Land of Opportunities, and many more. All these names encapsulate the unique values, culture, and identity of the American nation. Brother Jonathan and its synonyms are used interchangeably and are a testament to the nation's significant impact on the global stage.