/ Dictionary / Index S Samhain: Meaning and Definition of Find definitions for: Sa•mhain Pronunciation: (sä'win), [key] — n. a festival of the ancient Celts, held around November 1 to celebrate the beginning of winter. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. S. Amer. Sam Hill Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language