/ Dictionary / Index S Swithin: Meaning and Definition of Find definitions for: Swith•in Pronunciation: (swi'in, swith'-), [key] — n. dieda.d.862, English ecclesiastic: bishop of Winchester 852?–862. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. swither Switz. Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language