/ Dictionary / Index P petty cash: Meaning and Definition of Find definitions for: pet'ty cash' Pronunciation: [key] a cash fund for paying small charges, as for minor office supplies or deliveries. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. petty bourgeoisie Petty-Fitzmaurice Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language