English

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Etymology

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The town in California was originally called Ophir City, but the name was changed to Oroville when the first post office opened in 1854, from Spanish oro (gold) +‎ -ville.

Proper noun

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Oroville

  1. A city, the county seat of Butte County, California, United States.
  2. A city in Okanogan County, in north-central Washington, United States.