/ Dictionary / Index M moniker: Meaning and Definition of Find definitions for: mon•i•ker Pronunciation: (mon'i-kur), [key] — n. Slang. a person's name, esp. a nickname or alias. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: moniker (Thesaurus) monies monilia Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language