Ontario.
Ontario (all senses):
Meaning & usage
Ontario (all senses): Ontario (a province in eastern Canada)
Ontario (all senses): Ontario, Lake Ontario (a large lake in North America, one of the Great Lakes)
Ontario (all senses): Ontario (a city in San Bernardino County, California)
Ontario (all senses): Ontario (a city in Richland County, Ohio)
Ontario (all senses): Ontario (a city in Malheur County, Oregon)
Where this word comes from
Probably from Wyandot ontari:io (literally “great 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.