Breadcrumb Home > Dictionary > Index M merci beaucoup*: Meaning and Definition of Find definitions for: mer•ci beau•coup Pronunciation: (mer-sē' bō-k'), [key] — French. French. thank you very much. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Mercian Mercier TrendingHere are the facts and trivia that people are buzzing about. Ramadan and Eid al-Fitr 42 Best War Movie Quotes Current Events This Week: March 2023 Recycling Facts William Shakespeare Worst U.S. Forest Fires ✖ Related Content Daily Word Quiz: nonplus Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language