Ohio

American

[oh-hahy-oh] / oʊˈhaɪ oʊ /

noun

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.
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.

Ohio British

/ əʊˈhaɪəʊ /

noun

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)
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)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Ohio Cultural

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.

Other Word Forms

Ohioan

adjective

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Ohio

He expects politicians in Ohio and New York could also moderate their stances.

From MarketWatch ● Nov. 6, 2026

OpenAI, which has a data centre in Texas and under-construction projects in Ohio, pledged to ensure it fully paid for its own electricity on Thursday, external - one day after the midterm results.

From BBC ● Nov. 6, 2026

Texas, Georgia and Ohio account for more than 40% of all planned data center capacity in the U.S., according to investment bank Evercore ISI.

From The Wall Street Journal ● Nov. 5, 2026

"Democrat, Republican, that didn't matter," said Alisha Lange, a farmer from Piqua, Ohio.

From Barron's ● Nov. 5, 2026

Meanwhile, Garfield's Ohio political friends had been working toward winning him a seat in the U.S.

From "Ambushed!" by Gail Jarrow

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023