The word "Colorado" can refer to a few different things, but primarily, it is known in two major contexts: as a river and as a state in the United States.
Definition: Colorado is the name of a significant river that flows through the southwestern United States. It starts in the Rocky Mountains of northern Colorado and travels southwest through Utah and Arizona, where it passes through the Grand Canyon. Eventually, it flows south, forms part of the border between California and Arizona, and empties into the Gulf of California in Mexico.
Definition: Colorado is also a state located in the west-central part of the United States. It is known for its mountainous terrain and outdoor recreational opportunities.