/ Dictionary / Index T tax expenditure: Meaning and Definition of Find definitions for: tax' expend"iture Pronunciation: [key] any reduction in government revenue through preferential tax treatment, as deductions or credits. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tax exile taxflation Related Content Daily Word Quiz: wizened Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language