/ Dictionary / Index N Nicene: Meaning and Definition of Find definitions for: Ni•cene Pronunciation: (nī-sēn', nī'sēn), [key] — adj. of or pertaining to Nicaea. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nicene (Thesaurus) nice Nicene Council Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language