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Definitions

ancestor

[an-ses-ter, -suh-ster] / ˈæn sɛs tər, -sə stər /


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.

Congress created the Tenth Circuit in 1929, and it added the ancestor of the D.C.

From The Wall Street Journal • May 31, 2026

Canada, on the other hand, has done exactly the opposite: If you have a direct ancestor born across the northern border, no matter how far back, you probably qualify.

From Salon • May 31, 2026

The team also traced the gene FOS, which is widely expressed in blood cells across many animal species, back to a unicellular ancestor that lived about 700 million years ago.

From Science Daily • May 27, 2026

Humans, chimps and bonobos share a common ancestor going back 7 million years or so.

From Salon • Apr. 23, 2026

Harry was sure they were enjoying a private joke, undoubtedly about what they knew, or suspected, regarding their gang leader’s famous ancestor.

From "Harry Potter and the Half-Blood Prince" by J.K. Rowling




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