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Definitions

onset

[on-set, awn-] / ˈɒnˌsɛt, ˈɔn- /


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.

“Early onset breast cancer” — diagnosed before age 50 — “is going up the fastest among Asian Americans,” Gomez said.

From Los Angeles Times • Jun. 6, 2026

Mexico reported 1,717 active cases as of early May, while Panama’s caseload has grown so severe since its 2023 onset that officials have abandoned individual case tracking.

From Barron's • Jun. 4, 2026

The trade wobbled briefly this March following the onset of hostilities in the Middle East and went back into overdrive the past several weeks.

From The Wall Street Journal • Jun. 3, 2026

It happened after the 1970s oil shock, then again much later as the market bounced back from the 2008 financial crisis and after the onset of the COVID-19 pandemic.

From MarketWatch • Jun. 2, 2026

All these effects that continental differences in area, population, ease of diffusion, and onset of food production exerted on the rise of technology became exaggerated, because technology catalyzes itself.

From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond




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