/ Dictionary / Index C common disaster: Meaning and Definition of Find definitions for: com'mon disas'ter Pronunciation: [key] — Insurance. Insurance. the death of an insured party and a beneficiary occurring at the same time in the same accident. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. common difference common divisor Related Content Daily Word Quiz: laudable Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language