/ Dictionary / Index T taxing: Meaning and Definition of Find definitions for: tax•ing Pronunciation: (tak'sing), [key] — adj. wearingly burdensome: the day-to-day, taxing duties of a supervisor. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: taxing (Thesaurus) taximeter taxiplane Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language