/ Dictionary / Index E economy-size: Meaning and Definition of Find definitions for: e•con•o•my-size Pronunciation: (i-kon'u-mē-sīz"), [key] — adj. larger in size and costing less per unit of measurement than a smaller size: an economy-size box of soap flakes. smaller in size and costing less: economy-size cars. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. economy class ecophysiology Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language