/ Dictionary / Index C concision: Meaning and Definition of Find definitions for: con•ci•sion Pronunciation: (kun-sizh'un), [key] — n. concise quality; brevity; terseness. a cutting up or off; mutilation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: concision (Thesaurus) conciseness conclave Related Content Daily Word Quiz: pristine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language