Ohio

American  

[oh-hahy-oh] / oʊˈhaɪ oʊ /

noun

1. a state in the northeastern central United States: a part of the Midwest. 41,222 sq. mi. (106,765 sq. km). Columbus. OH (for use with zip code), O.

2. a river formed by the confluence of the Allegheny and Monongahela rivers, flowing southwest from Pittsburgh, Pa., to the Mississippi in southern Illinois. 981 miles (1,580 km) long.

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Ohio British  

/ əʊˈhaɪəʊ /

noun

1. Abbreviation and zip code: OH.  a state of the central US, in the Midwest on Lake Erie: consists of prairies in the W and the Allegheny plateau in the E, the Ohio River forming the S and most of the E borders. Capital: Columbus. Pop: 11 435 798 (2003 est). Area: 107 044 sq km (41 330 sq miles)

2. a river in the eastern US, formed by the confluence of the Allegheny and Monongahela Rivers at Pittsburgh: flows generally W and SW to join the Mississippi at Cairo, Illinois, as its chief E tributary. Length: 1570 km (975 miles)

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Ohio Cultural  

1. State in the northern United States bordered by Michigan and Lake Erie to the north, Pennsylvania and West Virginia to the east, West Virginia and Kentucky to the south, and Indiana to the west. Its capital is Columbus, and its largest city is Cleveland.

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Other Word Forms

• Ohioan adjective

Example Sentences

They need four seats to win back the chamber, and party leaders have highlighted North Carolina, Maine, Ohio and Alaska as the most plausible path.

From Barron's • Apr. 12, 2026

These two of the most prolific scorers in high school basketball history in Ohio are cut from the same cloth.

From Los Angeles Times • Apr. 11, 2026

“I think the developers need to find much more budget-friendly models,” said Julie Brown, an Ohio University associate professor of gerontology who teaches courses on the business of aging.

From MarketWatch • Apr. 10, 2026

Bonta on Thursday said federal authorities were also cracking down in Georgia, Texas and Ohio, noting that hospice fraud is happening across the country.

From Los Angeles Times • Apr. 9, 2026

Bliss and Garfield had known each other since they were teens in Ohio.

From "Ambushed!" by Gail Jarrow