a midwestern state in north central United States in the Great Lakes region
"Ohio is a midwestern state located in the north central United States within the Great Lakes region."
a river that is formed in western Pennsylvania and flows westward to become a tributary of the Mississippi River
"The Ohio originates in western Pennsylvania before flowing west to join the Mississippi River."
A state of the United States. Capital and largest city: Columbus.
"Ohio is a state in the Midwestern region of the United States, with Columbus serving as both its capital and largest city."
The word comes from a Seneca term meaning "good river." It was originally used as a proper name for the Allegheny River before becoming the English name for the entire waterway system.