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

Derived Forms

• Ohioan
  adjective

Example Sentences

The company committed $115 million to the program this year, piloting it in Louisiana, Ohio, Indiana, and Texas.

From The Wall Street Journal • Jun. 8, 2026

The companies identified as a part of the settlement included the maker of the smoke bomb, Wholesale Fireworks Corp., and its subsidiary, American Fireworks Wholesale LLC, which are both based in Ohio.

From Los Angeles Times • Jun. 3, 2026

Last year, the 37-year-old opted to skip the Jack Nicklaus-hosted event in Ohio for the first time since 2017, having also missed two signature tournaments at The Sentry and RBC Heritage.

From BBC • Jun. 3, 2026

And a month after that, the Senate confirmed Dettelbach, giving the ATF its first confirmed director since 2015, one who had prosecuted gun crimes as U.S. attorney for the Northern District of Ohio.

From Salon • Jun. 2, 2026

After the doctors warned that Garfield's recuperation could be slow, the family decided that the two youngest children should remain in Ohio with relatives throughout the summer.

From "Ambushed!" by Gail Jarrow