San Juan

geographical name

\ san-ˈwän

, ˌsän-ˈhwän\

Definition of San Juan

1 river 360 miles (579 kilometers) long in southwestern Colorado, northwestern New Mexico, and southeastern Utah flowing west into the Colorado River

2 city, port on an inlet of the Atlantic, and capital of Puerto Rico population 395,326

3 city in southern Texas near the Mexican border population 33,856

4 city in western Argentina north of Mendoza population 461,000