/ Dictionary / Index R reversionary annuity: Meaning and Definition of Find definitions for: rever'sionary annu'ity Pronunciation: [key] — Insurance. Insurance. an annuity payable to a beneficiary during the period of time he or she survives the insured. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. reversionary reversioner 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