/ Dictionary / Index D depreciation: Meaning and Definition of Find definitions for: de•pre•ci•a•tion Pronunciation: (di-prē"shē-ā'shun), [key] — n. decrease in value due to wear and tear, decay, decline in price, etc. such a decrease as allowed in computing the value of property for tax purposes. a decrease in the purchasing or exchange value of money. a lowering in estimation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: depreciation (Thesaurus) depreciate depreciatory Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language