Ontario.
A province in eastern Canada. Capital: Toronto.
Meaning & usage
A province in eastern Canada. Capital: Toronto.
A large lake in North America, between the Canadian province of Ontario and the American state of New York; one of the Great Lakes.
A village in the Cayo District, Belize.
A number of places in the United States: A city in San Bernardino County, California.
A number of places in the United States: A township and unincorporated community therein, in Knox County, Illinois.
A number of places in the United States: An unincorporated community in Lima Township, LaGrange County, Indiana.
A number of places in the United States: A community in Ames, Story County, Iowa.
A number of places in the United States: A town, hamlet, and census-designated place in Wayne County, New York.
A number of places in the United States: Ellipsis of Ontario County, New York.
A number of places in the United States: A city in Richland County, Ohio.
A number of places in the United States: A city in Malheur County, Oregon.
A number of places in the United States: A populated place in North Bethlehem Township, Washington County, Pennsylvania.
A number of places in the United States: A populated place in Charlotte County, Virginia.
A number of places in the United States: A village in Vernon County, Wisconsin.
Ellipsis of Ontario Township
Ellipsis of Ontario County
Where this word comes from
Etymology tree Proto-Iroquoian *-õːtaɹiʔ Proto-North Iroquoian *-õtaɹeʔ Wyandot ontari꞉iobor.? English Ontario Probably from Wyandot ontari꞉io (literally “great lake”). If so, ultimately from Proto-North Iroquoian *-õtaɹeʔ and Proto-Iroquoian * -õːtaɹiʔ. The Canadian province and New York county were named after the lake.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.