/ Dictionary / Index D daughter-in-law: Meaning and Definition of Find definitions for: daugh•ter-in-law Pronunciation: (dô'tur in lô"), [key] — pl. daugh•ters-in-law. the wife of one's son. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: daughter-in-law (Thesaurus) daughter daughter language Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language