Definition of ANCESTOR

a person who is several generations earlier in an individual's line of descent <Bridie's Irish ancestors immigrated to the United States in the 19th century during the Great Potato Famine>
Antonyms descendant (also descendent)
something belonging to an earlier time from which something else was later developed <pinball machines—the ancestors of today's video games—go back to the 19th century>
Antonyms descendant (also descendent)

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