/ Dictionary / Index P penguin: Meaning and Definition of Find definitions for: pen•guin Pronunciation: (peng'gwin, pen'-), [key] — n. Ornith. any of several flightless, aquatic birds of the family Spheniscidae, of the Southern Hemisphere, having webbed feet and wings reduced to flippers. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: penguin (Thesaurus) Pengpu penholder Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language