Definition of Ohio in US English:

Ohio

proper noun

  • A state in the northeastern US, bordering on Lake Erie; population 11,485,910 (est. 2008); capital, Columbus. Acquired by Britain from France in 1763 and by the US in 1783, it became the 17th state of the US in 1803.

Pronunciation

Ohio

/oʊˈhaɪoʊ//ōˈhīō/