Breadcrumb Home > Dictionary > Index F filiate: Meaning and Definition of Find definitions for: fil•i•ate Pronunciation: (fil'ē-āt"), [key] — -at•ed, -at•ing. to determine judicially the paternity of, as a child born out of wedlock. Cf. affiliate (def. 5). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: filiate (Thesaurus) filial filiation ✖ Related Content Daily Word Quiz: deracinate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language