/ Dictionary / Index P pen name: Meaning and Definition of Find definitions for: pen' name" Pronunciation: [key] a pseudonym used by an author; nom de plume. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pennaceous pennant Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language