/ Dictionary / Index P possum: Meaning and Definition of Find definitions for: pos•sum Pronunciation: (pos'um), [key] — n. opossum. The baseball broke the window, but the children played possum when asked who had thrown it. to feign sleep or death. to dissemble or pretend ignorance:The baseball broke the window, but the children played possum when asked who had thrown it. any of various phalangers, esp. of the genus Trichosurus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: possum (Thesaurus) POSSLQ possum haw Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language