/ Dictionary / Index G gangsterism: Meaning and Definition of Find definitions for: gang•ster•ism Pronunciation: (gang'stu-riz"um), [key] — n. the methods or behavior of gangsters. the use of tactics associated with gangsters, as intimidation or violence, in order to achieve something. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gangster gang switch Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language