/ Dictionary / Index D dinner knife: Meaning and Definition of Find definitions for: din'ner knife" Pronunciation: [key] a knife used in eating the main course of a meal. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dinner jacket dinner plate Related Content Daily Word Quiz: hale Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language