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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.

I teach my students about Didion’s ancestor, Nancy Hardin Cornwall, who trekked westward with the Donner-Reed party in 1846.

From Los Angeles Times • Jun. 8, 2026

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

From The Wall Street Journal • 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

"It's mind-boggling that our pineal gland's ability to regulate our sleep according to light stems from the cyclopean median eye of a distant ancestor 600 million years ago," concludes Dan-E Nilsson.

From Science Daily • Apr. 27, 2026

She was someone important now, a future ancestor.

From "A Girl Named Disaster" by Nancy Farmer




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