/ Dictionary / Index C capital sum: Meaning and Definition of Find definitions for: cap'ital sum' Pronunciation: [key] — Insurance. Insurance. the maximum amount collectable for accidental death or for some major disabling injury, as one resulting in the loss of an eye, leg, or arm. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. capital structure capital surplus Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language