/ Dictionary / Index P pseudonymity: Meaning and Definition of Find definitions for: pseu•do•nym•i•ty Pronunciation: (sd"n-im'i-tē), [key] — n. pseudonymous character. use of a pseudonym. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pseudonym pseudonymous Related Content Daily Word Quiz: maritime Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language