Definition: Arizonians are a group of people primarily in Arizona, United States. They speak English as their first language and have some degree or knowledge of American history. The term "Arizona" refers to the state that encompasses much of the west coast of the continent from the mountains on the Pacific to the plains in the east. Definition: Arizonians are a group of people primarily in Arizona, United States. They speak English as their first language and have some degree or knowledge of American history. The term "Arizona" refers to the state that encompasses much of the west coast of the continent from the mountains on the Pacific to the plains in the east. The name is derived from the indigenous Native Americans called Aztecs, who were heavily involved with the region's earliest cultures. They are often known as "the people of the sun," and the Arizonian state is one of the most arid regions in the country.