/ Dictionary / Index D disappearance: Meaning and Definition of Find definitions for: dis•ap•pear•ance Pronunciation: (dis"u-pēr'uns), [key] — n. the act or an instance of disappearing; a ceasing to be seen or to exist. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: disappearance (Thesaurus) disappear disappoint Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language