/ Dictionary / Index C congratulation: Meaning and Definition of Find definitions for: con•grat•u•la•tion Pronunciation: (kun-grach"u-lā'shun or, often, -graj"-, kung-), [key] — n. the act of congratulating. an expression of joy in the success or good fortune of another. —interj. (used to express joy in the success or good fortune of another): Congratulations! You have just won the lottery! Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: congratulation (Thesaurus) congratulate congratulatory 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