/ Dictionary / Index P Posen: Meaning and Definition of Find definitions for: Po•sen Pronunciation: (pō'zun), [key] — n. German name of Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Poseidon poser Related Content Daily Word Quiz: pugilist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language