/ Dictionary / Index A ancestry: Meaning and Definition of Find definitions for: an•ces•try Pronunciation: (an'ses-trē or, esp. Brit., -su-strē), [key] — pl. -tries. family or ancestral descent; lineage. honorable or distinguished descent: famous by title and ancestry. a series of ancestors: His ancestry settled Utah. the inception or origin of a phenomenon, object, idea, or style. the history or developmental process of a phenomenon, object, idea, or style. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ancestry (Thesaurus) ancestress Anch'ing Related Content Daily Word Quiz: pudgy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language