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

Noel Gallagher told Rolling Stone magazine that he accepted an invite from a representative of the Rock & Roll Hall of Fame and went to visit the museum in Cleveland, Ohio.

From BBC • Apr. 13, 2026

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

Mitch Coleman, an accountant in Ohio, wrote that in his state there is a $200 a year surcharge on EVs, levied because the vehicles don’t pay a tax on gasoline.

From The Wall Street Journal • Apr. 10, 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

Because his Ohio Senate duties weren't full-time, he continued as president and teacher at the Eclectic Institute, too.

From "Ambushed!" by Gail Jarrow