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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

This increases the risk of compounding hazards in some regions and accelerating the onset of drought conditions where rainfall is reduced, it said.

From Barron's • Jun. 2, 2026

The study found that a one year course of the biologic drug abatacept significantly delayed the onset of rheumatoid arthritis, with benefits continuing long after treatment ended.

From Science Daily • Jun. 1, 2026

Both the U.S. and global benchmarks are now on pace for their biggest monthly swoon since the start of the onset of the COVID-19 crisis more than six years ago.

From MarketWatch • May 29, 2026

This onset too probably involved replacement of old Greeks and Germans by new Greeks and Germans, just as old gave way to new in the Philippines, Indonesia, and subequatorial Africa.

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




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