/ Dictionary / Index S serein: Meaning and Definition of Find definitions for: se•rein Pronunciation: (su-ran'), [key] — n. Meteorol. fine rain falling after sunset from a sky in which no clouds are visible. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sere Serena Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language