/ Dictionary / Index F family name: Meaning and Definition of Find definitions for: fam'ily name" Pronunciation: [key] the hereditary surname of a family. a given name frequently used in a family. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. family man family of curves Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language