Definition that contains ohio river
- east the region of the United States lying to the north of the Ohio River and to the east of the Mississippi River
- tennessee a river formed by the confluence of two other rivers near Knoxville; it follows a U-shaped course to become a tributary of the Ohio River in western Kentucky
- pittsburgh a city in southwestern Pennsylvania where the confluence of the Allegheny River and Monongahela River forms the Ohio River; long an important urban industrial area; site of Carnegie Mellon University and the University of Pittsburgh
- cincinnati a city in southern Ohio on the Ohio river
- huntington a city of western West Virginia on the Ohio river at the mouth of the Kanawha
- louisville the largest city in Kentucky; located in north central Kentucky on the Ohio river; site of the Kentucky Derby
- wheeling a city in the northern panhandle of West Virginia on the Ohio river
- cumberland a river that rises in southeastern Kentucky and flows westward through northern Tennessee to become a tributary of the Ohio River in southwestern Kentucky
- wabash a tributary of the Ohio River that rises in western Ohio and flows southwestward across Indiana
- allegheny a river that rises in Pennsylvania and flows north into New York and then back south through Pennsylvania again to join the Monongahela River at Pittsburgh which is the beginning of the Ohio River