/ Dictionary / Index P prosecution: Meaning and Definition of Find definitions for: pros•e•cu•tion Pronunciation: (pros"i-ky'shun), [key] — n. the institution and carrying on of legal proceedings against a person. the body of officials by whom such proceedings are instituted and carried on. the following up of something undertaken or begun, usually to its completion. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: prosecution (Thesaurus) prosecuting attorney prosecutor Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language