/ Dictionary / Index F fixed cost: Meaning and Definition of Find definitions for: fixed' cost' Pronunciation: [key] a cost unvarying with a change in the volume of business (distinguished from variable cost). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fixed charge fixed-do system Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language