/ Dictionary / Index C cothurnus: Meaning and Definition of Find definitions for: co•thur•nus Pronunciation: (kō-thûr'nus), [key] — pl. -ni a grave and elevated style of acting; tragic acting; tragedy. buskin (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cothamore cotidal Related Content Daily Word Quiz: fresco Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language