/ Dictionary / Index F foster father: Meaning and Definition of Find definitions for: fos'ter fa'ther Pronunciation: [key] a man who takes the place of a father in raising a child. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. foster daughter foster home Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language